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Secret Study Tips Nobody Told You




Before going into this article, I’d like to say that the inspiration for this article was from a video I watched on YouTube (link to the video below). The girl really talked about some realistic tips that I think will work for people, or if not, you would be able to pick some ideas. I added my points too, based on my experiences in school. If you wanna watch the video, here it is;

But, if you want the full gist, with less time, and less data, then let us dive into the article together. 

Please, remember to leave a comment in the comment section about anything about the post.


Striving for Academic Excellence

So you want to become that “perfect student”, “That student”, or “the one that always gets straight A’s effortlessly.” At this point, you probably know what you need to do. Study more, be organized, use the Pomodoro method, test yourself, and make engaging notes, but nothing ever sticks. 

You try your new study habits and routines for like two days, then crash, and ultimately keep being the same old chaotic, hot, messed version of yourself, while those other perfect, students in your grade keep acing their exams without seeming to break a sweat. But no more. 

In this article, I will go over some top-secret, non-basic study tips and hacks that actually work and will help you finally see improvements in your grades. 

The Common Struggles

Identifying the Three Main Challenges

Here are three main issues that I’ve personally faced, and I feel like the majority of students face when it comes to studying and grades./h

  1. you don’t know how to study. 
  2. you don’t study enough. Or 
  3. you don’t study efficiently. 

Problem One: Finding Effective Study Strategies

For potential problem number one, this is just a situation where you don’t yet know the strategies and techniques that work for you and help you get top grades. Here are the general rules for playing the game of getting good grades.

Prioritize Weightier Exams/Assignments

First, it’s really important to note the weights of the assignments and how important the exams are, in order to prioritize your time on the assignments or exams that are worth the most, and make sure that you put most of your effort into them. 

Some courses are 5 units, some are 2 units, so make sure you prioritize reading the heavier ones for exams first. The 5-unit course carries a greater percentage of your GPA than 2 units. Put more effort into heavy courses!

Understanding Exam Composition

Two is knowing what’s on the exams. Obviously, you won’t know exactly what’s on the exams beforehand usually, but essentially knowing if the majority of the exam will be based on the lectures, slides or on the textbook, or on everything. Also, after you get the feedback for your first few assignments or exams, try to remember what the exam was like and whether it was more from the class lectures or slides or textbooks, and just overall analyze the exam in the first couple of assignments and try to figure out what the teacher wants. Also, if you have quizzes in your class, then I recommend trying to write down any questions you remember after the quizzes and seeing if they pop up on the exam later. There are some lecturers who give you the exact questions they do in class, they give them in your exams, and some use the exact examples in their slides. I’ve seen this a lot with my classes, and that way you can get free points because the same questions popped up on both the class questions and the exam. 

Leveraging Past Exams and Resources

Again, if there is any access to past exams or past papers or practice questions in the textbook, it’s great to use them to review and see where your knowledge gaps are, and also, again, see if any of the questions end up popping up on the exams. 

Download Some OAU 100L Past Questions

Download Last Year’s Past Questions (For OAU Science Part 2 Students)

Concentrate More On Your Lecturer Slides/Class Notes

Next, if there is a note or slide for the class, just straight up use that. I don’t really take notes anywhere else since if the teacher made a study guide or their own notes for the class, it’s very unlikely that they’ll deviate a lot from the notes, and it gives you a great structured format to know what to study and what to prioritize.

If you would like to watch a YouTube video or watch a course online on a particular topic, probably you don’t understand from class or you don’t understand your slides. Do not just watch literally everything in the video, (it’s not the Youtuber that wants to set your exams, lol) You may not need everything for your exams. Watch the video with your school slides or class notes, if there were parts of the video that were clearly just from the slides, then watch that portion of the lecture and take the notes from the lecture for that part well.

Get Freshers Materials (Slides and Class Notes)

Download Material For OAU Science Part 2 Students (Slides and Class Notes)

Embracing Diverse Learning Methods

 A major thing here is once you find something that works for you, even if everyone on the internet says handwriting is terrible and passive reading is bad, honestly, if it works for you, just keep doing it. Don’t let anyone shame your weird study methods or your inefficient study methods. Just find something that works for you and that helps you get the grades that you want.

Problem Two: Time Management and Prioritization

Okay, so problem number two is if you don’t study enough or have enough time.

Balancing Extracurricular Activities

So in this case, I highly recommend cutting some extracurriculars, if you just realize you have way too many.

Tracking and Optimizing Your Study Time

Also, I recommend tracking your time for a week or two and just seeing where all your time goes and also tracking how much time you actually study. Because, for instance, if it turns out you only study five hours a week, then you probably know that something you need to work on is gradually building up how much time you can sit at your desk and study.

Efficient Use of Free Hours

Also, a major tip that really helps a little when you have a million extracurriculars and a million classes, is using your time in school wisely. If you can actually set a goal to use every free minute that you can in school to study. It turns out that there sometimes is actually a lot of free time that just floats around. So use your time wisely at school if you can, and you’ll find that you have a lot more time for studying than you expected during the day in school.

Problem Three: Studying Efficiently

Problem number three is that you don’t study efficiently.

Redefining the Study Hours vs. Success Equation

The most important thing to remember here is that the hours that you spend studying do not really equal success.  Because honestly, when it comes to studying efficiently, you do not have to handwrite your notes for everything. It really is just about playing the game that is getting straight A’s and figuring out what is the bare minimum sometimes that you need to do to get those A’s.

Utilizing Online Resources

Another thing that top students do is that they definitely use outside resources that help them be more efficient and study better.

For example, if you look up certain teacher websites, either your own teacher website or you type in a generic class like AP Chemistry, Weebly, online website, you can usually find a ton of free notes, PDFs, and documents that teachers have uploaded to their websites and actually use those as your notes instead of making them yourself. Definitely don’t be afraid of using the internet to research and find amazing resources. 

Seeking Tutoring and Teacher Guidance

 Of course, if you’re really struggling with a specific topic, absolutely reach out to a tutor. Absolutely see, because usually most universities and schools have free tutoring, so try to see if you can find any student tutors or free tutors.

Absolutely reach out to upper-class men if you can and definitely use your teacher as well as a resource, especially if they’re a really nice teacher. Go to their office hours, visit them at lunch if you can, and definitely use them as well. 

Telling God

If you believe in God, you should always tell Him about everything you do, this includes studying too. Tell Him about your difficulties and how you feel, and pray to Him to raise people who will be your friend, encourage, and guide you through. Tell him that you want favor in your studies, He should tell you what to read, and give you strength when you are tired. Let me tell you, he hears every single word you say, and guess what? He can do them all for you. What makes studying more efficient than this?

Cultivating the Right Mindset

Now, let’s talk about the mindset. Basically, when it comes to the mindset, in my opinion, there are three main pillars of this.

Building Confidence in Your Ability to Improve

Number one is the confidence pillar, which is basically the belief that you can improve. Because if you don’t believe it, you’re honestly deep, deep, deep down going to just think, “I could be doing something fun instead of studying and sitting here, and it’s not going to make a difference.”  So, in my opinion, the way that you develop this confidence or this belief that studying does lead to better grades, or that changing the way you study will lead to better grades, it only comes from the results you get, honestly. I understand some people get it by affirmations and all that, and if that works for you, good for you. But if you are going to really try to improve and learn this subject and just see if you can really try for a semester, for instance. And then, once you actually see tangible results, you’ll start to develop that confidence that you can change, and it’s that belief that you can do it that will keep you resilient and motivated and determined throughout the semester, and not have a mental breakdown every time you don’t get the results you want, or you get a bad grade. This ties into the second pillar of how to have a growth mindset.

Fostering a Growth Mindset

 Number two is the growth mindset, but it’s basically that mindset that every failure is something to learn from and shows you what doesn’t work rather than internalizing that failure and basically concluding that you suck. And again, in my opinion, you’ll only deeply believe that failure is not the end of the world. Once it actually comes true, you actually learn from failures and then you bounce back. That’s why pivoting or changing study techniques, if nothing is working for you is super important, so you don’t keep doing the same thing over and over again and setting yourself up for failure. 

So for instance if handwriting notes it’s just too slow or too boring for you and you can’t concentrate, then definitely try watching videos or making flashcards or mind maps or something completely different and see if that works for you. It’s better that I eventually figure it out in a year, than just continuing to do the same thing that I did for the past several years and continuing to get bad grades. 

The Significance of Valuing Your Grades

The last pillar is simply placing importance on grades. So, obviously, making grades a priority is important for getting good grades because if you don’t care about grades, if you don’t think it’s important, then you’re just not going to prioritize it. You’re not going to study a lot, and you’re not going to get good grades. So, I highly recommend trying to figure out why you want to get good grades and just really thinking about it. It’s probably not going to come to you in like three seconds. It might take several months, even. But just really thinking like why are the grades important to you? Is it for your parents? Do you want to make them proud? Do you want to get a good job in the future? Are you obsessed with a certain subject, and do you really want to learn it and be amazing? And it really doesn’t matter ultimately what that reason is. You don’t have to tell anyone, but the stronger your emotions are about that reason, the better. Because ultimately when you’re sleep-deprived, when you’re tired, it’s remembering that reason that will help you continue pushing through instead of going on your phone or giving up or not caring.

Playing to Your Strengths and Weaknesses

Alright, this part is playing to your strengths and weaknesses. It’s just basically trying to know yourself and how you work. 

Breaking Down Tasks for Success

Break up your assignments or the things that you have to do into little chunks.  So if you get overwhelmed a lot, I also recommend breaking up tasks into little pieces and then, you know that you’ll have a break after you do a certain amount of things. 

Finding Inspiration and a Supportive Community

Surround yourself with an artificial community or a real-life community of peers who are also interested in studying. This is just really helpful when you feel like you completely don’t care about studying or school, or you’re just really lacking motivation. It can be really helpful to find maybe five to ten people on YouTube or on Instagram. It can also be whoever you see as an academic inspiration, and watching them in your free time to kind of reminds you to kind of glorify the process of studying. And that way, you’re getting motivated, and inspired to study even on your breaks, instead of getting completely distracted by a fantasy book or some really intriguing murder mystery show or something like that, that completely distracts your brain from studying and from school. So basically use your study breaks in your Pomodoro sessions or between study sessions to watch, study people, or study inspirations to kind of help focus your brain on studying. 


In conclusion, the path to academic excellence is an exciting journey filled with opportunities for growth and improvement. By addressing common challenges such as effective study methods, time management, and the development of a growth mindset, you can set yourself on the course to achieving your academic goals.

The key lies in self-awareness and adaptability. Recognize your unique learning style and embrace it. Whether you thrive on the pressure of last-minute deadlines or prefer a well-structured study plan, understanding what works best for you is essential. Don’t fear failure; view it as a stepping stone to success. Experiment with various techniques until you discover your personal formula for success.

Placing importance on your grades can be a powerful motivator. Identify your reasons for striving for excellence, be it personal fulfillment, making your family proud, or securing your future. Let these motivations fuel your determination, especially during challenging times.

Finally, remember the value of a supportive community. Surrounding yourself with like-minded individuals who share your commitment to learning can be a wellspring of inspiration. Whether you find study partners online or in real life, a sense of belonging to a community of learners can reignite your motivation during tough moments.

In your journey to academic success, remain undaunted by setbacks or unconventional study habits. While the road may be long, the destination is worth the effort. So, equip yourself with the right strategies, cultivate a resilient mindset, and draw strength from your unique motivations. With these tools in hand, you’re well on your way to becoming the exceptional student you aspire to be. Feel free to share your own insights and experiences in the comment section below. Your feedback is greatly appreciated and can inspire others on their educational journeys.




PHY 203 Quiz For OAU



8 votes, 4.8 avg
Created by Oluwaferanmi Akinyele

PHY 203 Quiz

These are likely questions for our test based on our class notes, few questions our lecturers asked in class, examples in the notes and some online questions.


This quiz consists of 95 questions covering all the topics we have been taught in PHY 203 till present. I hope we all find it helpful.

You have 50 mins for this quiz.




Contributors: Zainab, Verah & Lammylex (CHM department)

and Shukroh, Great Blakky and Ebun (PHY department)



1 / 95

1. In pure inductors, current ……… the voltage by ……

2 / 95

2. In an RL circuit voltage across the resistor increases exponentially

3 / 95

3. Voltmeter draws …………………… current

4 / 95

4. A capacitor and an Inductor in an AC circuit is referred to as

5 / 95

5. Calculate the equivalent resistance

6 / 95

6. Circuit elements connected in series have common …………….. passing through each element

7 / 95

7. The separation between conduction band and valence band on the energy level diagram is called ________

8 / 95

8. Why is a laminated steel core used in a transformer instead of a solid core?

9 / 95

9. The collector current is determined by the _________

10 / 95

10. The loss due to ohmic resistance of the transformer windings

11 / 95

11. A perfect amplifier has all of the following properties except:

12 / 95

12. In a semiconductor, as temperature increases, conductivity ………………

13 / 95

13. In a multimeter, when the variable resistance and the fixed resistance are connected in series with the battery and galvanometer, the multimeter functions as

14 / 95

14. Which of the following is/are correct?

I. Bipolar junction transistors control the current by varying the number of charge carriers

II. Voltage between 2 terminals are indicated by repeated letters

III. The emitter is lightly doped to reduce junction capacitance

IV. The emitter-base junction is forward biased

15 / 95


How many branches, nodes, loop and mesh do we have here?

16 / 95

16. If a circuit has the following parameters Vcc =20V, Rs +Rm = 9.3KΩ, Vbe = 0.7, Im =1mA, and Β = 100. Calculate the meter current when E =10V and the voltmeter input r with or without the transistor.

17 / 95

17. Depletion layer serves as barrier to the movement of free electrons.

18 / 95

18. A laminated steel core that has high silicon content provides

19 / 95

19. To convert a multiplier to an ammeter, a ………. resistance is connected in ……………… with a galvanometer

20 / 95

20. Inductors smoothen sharp sudden changes in ……….

21 / 95

21. The process of setting up a current to operate a transistor at a desired point on its characteristic curve is known as __________

22 / 95

22. A semiconductor in an extremely pure form is known as ………….

23 / 95

23. Which of the following is true about transformers?

I. Open circuit test are done with a load on the transformer.

II. Copper loss is due to the ohmic resistance of the transformer windings.

III. Open circuit test is done to determine the ‘no load loss’ of the transformer.

IV. A transformer is electrically linked.

24 / 95

24. The principle behind the working of a transformer is _________

25 / 95

25. Inductors are very common in high-frequency circuit

26 / 95

26. …………………. are responsible for the conduction  in a conductor

27 / 95

27. Which of the following is true about the effect of temperature on semiconductors

I. At absolute zero, there are no free electrons.

II. Above absolute zero, bonds break and electrons move under the influence of the applied electric field.

III. The semiconductor has its highest conductivity at absolute zero

IV. The semiconductor behaves as a perfect insulator at absolute zero

28 / 95

28. The loss due to the reversal of magnetization in the transformer core is known as

29 / 95

29. A material that releases an electron from the valence band into the conduction band when a photon of light is incident on it is a ___________

30 / 95

30. A variable resistor in an electric circuit is for ……………

31 / 95

31. An ammeter also detects the direction of the flow of current

32 / 95

32. ________ converts alternating currents into direct currents

33 / 95

33. when the sensitivity of a meter is high, it means the meter has ………….

34 / 95

34. What is the number of branches, nodes, loops, and meshes?

35 / 95

35. Calculate the current flowing in the circuit

36 / 95

36. A transformer only increases the voltage with corresponding increase in current

37 / 95

37. Calculate Rth, Vth, and I5

38 / 95

38. The transistor is a current __________ device.

39 / 95

39. Which of the following transformers has a high rating?

40 / 95

40. When a small amount of trivalent impurity is added to a pure semi conductor, the semi conductor becomes

41 / 95

41. A resistor is regarded as a circuit element which puts energy into a circuit

42 / 95

42. The voltage signal at the collector is out of phase with the signal at the base by:

43 / 95

43. A mesh is any closed path in a circuit which does not enclose any other closed path inside it

44 / 95

44. Which of this is true

45 / 95

45. A p-n junction is also known as

46 / 95

46. A capacitor C and an Inductor L store…………….. and ……………….. respectively

47 / 95

47. What is known as eddy current loss in a transformer?

48 / 95

48. The core in a transformer provides ?

49 / 95

49. Which of the following statements is/are true? I. A multimeter can be used as an ammeter when low resistance is connected in parallel with the galvanometer II. A low sensitive meter will measure Voltage perfectly III. A multimeter cannot be used to determine circuit continuity IV. A multimeter can be used as an voltmeter when high resistance is connected in series with the galvanometer

50 / 95

50. On the basis of their use, transformers are classified as

51 / 95

51. A galvanometer measures and detects extremely small currents both in ………………… and ………………………

52 / 95

52. In a RC circuit, voltage across the resistor ………………. exponentially with time

53 / 95

53. A hole can also be described as a _________

54 / 95

54. Coils are …………… separated, but ……………. linked together

55 / 95

55. Consider the following statements and choose only correct answers

I. The resistivity of a semiconductor is less than that of an insulator and more than a conductor

II. As temperature increases, the conductivity of semiconductors decreases

III. We can consider a semiconductor as a resistance material

IV. Semiconductors have a negative temperature coefficient of resistance

56 / 95

56. The e–h+ pair can also be called ____

57 / 95

57. Copper loss is usually larger than other losses

58 / 95

58. A component that allows the flow of current in only one direction is called ……….

59 / 95

59. The emf that gets induced in the secondary winding according to Faraday’s law of electromagnetic induction is called?

60 / 95

60. A Thevenin’s equivalent circuit contains an equivalent source Vth in parallel with an equivalent resistor Rth

61 / 95

61. A emitter-follower circuit has Vcc =12V, Rm = 1KΩ and a 2mA meter. If the amplification factor of the resistor is 80 and Vbe = 0.7. Calculate the suitable r for Rs to give fsd when E= 5V.

62 / 95

62. Which of this must be connected to multimeter to be able to measure AC voltages?

63 / 95

63. A meter is protected in the case of accidental workload by connecting …………… in ………….. with a voltmeter

64 / 95

64. Which of the following is/are true

I. Reverse biasing prevents the flow of charge carriers across the junction.

II. Forward biasing is created when the positive terminal is connected to the n-type part of the PN junction.

III. In practice, when we apply reverse biasing to a PN junction, all the charge carriers stops to flow.

65 / 95

65. The most versatile circuit configuration for transistors is the

66 / 95

66. A transformer consists of two inductive coils namely;

67 / 95

67. Loading effect of a meter happens because……………

68 / 95

68. What are the examples of passive elements?

69 / 95

69. A node is a collection point for two or more banches

70 / 95

70. What type of bonds exist in semiconductors

71 / 95

71. In checking for continuity of circuit which on these is used

72 / 95

72. AC Current and Voltage may vary with time. True or False?

73 / 95

73. The transistor is a three-terminal device that we can use to form a _____________ circuit

74 / 95

74. Select the correct options only

I. Pentavalent impurities provide large number of free electrons to the semiconductor.

II. Trivalent impurities provide large number of free electrons to the semiconductor.

III. Trivalent impurities provide large number of holes to the semiconductor.

IV. Pentavalent impurities provide large number of holes to the semiconductor.

75 / 95

75. Extrinsic semiconductors have more current conducting capacity than intrinsic semiconductors

76 / 95

76. A multiplier measures ………………, ………………….. and …………………

77 / 95

77. Calculate Ia, Ib and Ic

78 / 95

78. A capacitor stores charge and hence, electric energy

79 / 95

79. Which of these will result in forward biasing

I. when certain dc voltage is applied to the junction in such a direction that it cancels the potential barrier thus permitting the flow of current

II. Connecting the negative terminal of the battery to the p-type and positive terminal to the n-type

III. Connecting the positive terminal of the battery to the p-type and negative terminal to the n-type

IV. when certain dc voltage is applied to the junction in such a direction that the potential barrier is increased

80 / 95

80. A 6600/550V, 25KVA transformer has iron losses of 350W and its 1º and 2° winding resistances are 14.5 and 0.1Ω respectively. Determine the full load efficiency at a power factor of unity.

81 / 95

81. The potential barrier of a P-N junction depends on which of the following except

82 / 95

82. In a transformer, most flux which get linked to the secondary winding is called?

83 / 95

83. Circuit elements are connected in parallel when a common ……………. is applied to each elements

84 / 95

84. p-type and n-type semiconductor join together to form a …………….. known as …………….

85 / 95

85. The Norton’s equivalent circuit contains a Norton equivalent source “I(N)” in parallel with an equivalent resistor R(N)

86 / 95

86. In electronics, _____ refers to the use of DC voltage to establish certain operating conditions for an electronic device.

87 / 95

87. Which of the statements about PN junction is true

I. A PN junction presents a high resistance if forward biased.

II. A PN junction presents a high resistance if reversed biased.

III A PN junction presents a low resistance if forward biased.

IV. A PN junction presents a low resistance if reversed biased.


88 / 95

88. The resistivity of a semiconductor is ………. that of an insulator, and …………that of conductors

89 / 95

89. The majority carriers in an n-type semiconductor is ?

90 / 95

90. No electrons can stay in the forbidden gap because

91 / 95

91. An Inductor tend to smooth sudden change in ……………..

92 / 95

92. A inductor stores energy in its _________

93 / 95

93. Any transistor designed must operate in the ________ region of the characteristic curve

94 / 95

94. The arrangement of atoms in a repetitive manner is known as

95 / 95

95. Which of the following is correct

I. Small changes in V(BE) will produce large current changes in I(C) & I(E)

II. Small changes in V(CE) have little effect on I(B)

III. Small changes in V(CE) will produce large current changes in I(C) & I(E)

I, II, III & IVIV. Small changes in V(BE) will produce large current changes in I(B)

Your score is

The average score is 53%


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Quiz for CSC 201



14 votes, 4.4 avg

You have 30 mins for this quiz

Time up!

Created by Oluwaferanmi Akinyele

CSC 201

Preparatory Quiz for CSC 201 Test 2022/2023. This quiz contains 40 multiple choice questions.



The questions are compiled by Physics department gurus;

Ebun (Class rep)




and Blakky

1 / 40

The outcome of a programming activity is a _________

2 / 40

What is the maximum possible length of an identifier in Python?

3 / 40

Who developed Python Programming Language?

4 / 40

The ______ is the brain of the computer that performs simple arithmetic & logical operations

5 / 40

Machines developed in transistor era include the following except

6 / 40

What are the two main types of functions in Python?

7 / 40

Application software includes the following except

8 / 40

What is the value of the following expression?


9 / 40

A computer software comprises of ___________ software & ___________ software

10 / 40

Which one of the following is the use of function in python?

11 / 40

Operating Systems includes the following except

12 / 40

The following is true about python except

13 / 40

‘Bit’ stands for

14 / 40

In flow charts, a terminal is represented with what shape

15 / 40

Which type of Programming does Python support?

16 / 40

The following are program elements except

17 / 40

What is the order of precedence in python?

18 / 40

Is Python case sensitive when dealing with identifiers?

19 / 40

Which of the following variable naming is correct

20 / 40

Which of the following is an invalid statement?

21 / 40

Machines developed in mechanical era include the following except

22 / 40

What will be the value of X in the following Python expression?

“`X = 2+9*((3*12)-8)/10“`

23 / 40

Which of the following is used to define a block of code in Python language?

24 / 40

The following are high-level languages except

25 / 40

Which of the following character is used to give single-line comments in Python?

26 / 40

Which keyword is used to call a function in Python language?

27 / 40

A ________ is a sequence of instructions telling the computer what to do.

28 / 40

Which of the following is an invalid variable?

29 / 40

The correct sequence of the history of modern era is

30 / 40

Which of the following functions is a built-in function in python?

31 / 40

The following are python reserved words excerpt

32 / 40

Is Python code compiled or interpreted?

33 / 40

What are the values of the following Python expressions?

“` 2**(3**2)“`

“` (2**3)**2“`

“` 2**3**2“`

34 / 40

Which of the following is true for variable names in Python?

35 / 40

The expression

“`2**2**3“` is equal to “`(2**2)**3“`

36 / 40

What is the average value of the following Python code snippet?

“`grade1 = 80“`

“`grade2 = 90“`

“`average = (grade1 + grade2) / 2“`

37 / 40

What will be the output of the following Python expression?


38 / 40

Python was created in what year

39 / 40

Which among the following list of operators has the highest precedence?

“` +, -, **, %, /, <<, >>, |“`

40 / 40

Which of the following is the correct extension of the Python file?

Your score is

The average score is 66%


Thank you for your feedback!

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PHY 205 Quiz



0 votes, 0 avg

OAU PHY 205 Quiz

PHY 205

1 / 34

1. Which branch of physics is concerned with the quantization of energy and its effects on the interaction of matter and energy?

2 / 34

2. What type of process is represented by this equation e† + e¯ → ϒ + ϒ

3 / 34

3. What is the relative mass of an electron compared to a proton?

4 / 34

4. What is the electric charge of a positron?

5 / 34

5. Which of the following statements is TRUE?

6 / 34

6. Electrons, being fermions, adhere to which principle that prohibits two electrons from occupying the same quantum state?

7 / 34

7. What term is used to describe the lowest energy state that an electron can occupy within an atom?

8 / 34

8. Which of the following is not quantized?


9 / 34

9. Which of the following statements about electrons within an atom is true?

10 / 34

10. What is the intrinsic angular momentum (spin) value of an electron?

11 / 34

11. Electrons absorbs energy in form of photons as they are accelerated

12 / 34

12. Wavelength is inversely proportional to an object’s mass

13 / 34

13. Which field properties does an electron exhibit due to its charge and motion?

14 / 34

1. In quantum mechanics, what role does a photon play in the electromagnetic field?

15 / 34

2. In Thomson's model, where are the negatively charged electrons located?

16 / 34

3. According to quantum mechanics, what is the alternate view of electromagnetic radiation (EMR)?

17 / 34

4. What is the significance of alpha particle scattering experiments in Rutherford's model?

18 / 34

5. What are electromagnetic waves?

19 / 34

6. In Rutherford's model, where is the positive charge concentrated?

20 / 34

7. If the dimensions of the nucleus are small enough, what can happen to alpha particles passing very near the nucleus in Rutherford's model?

21 / 34

8. What is the primary reason for the scattering of alpha particles in Rutherford's model?

22 / 34

9. What is a photon?

23 / 34

10. Arrange the following types of electromagnetic radiation in order of increasing wavelength

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11. How do the oscillations of the electrical and magnetic components in electromagnetic waves relate to the direction of propagation?

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12. In electromagnetic waves, how do the electrical and magnetic components oscillate?

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13. Arrange the following types of electromagnetic radiation in order of increasing frequency:

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14. How are the electrons distributed in Thomson's model?

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1. In what devices are cathode ray tubes commonly used?

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2. What happens when a metal wire is heated in a vacuum during thermionic emission?

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3. Why is it necessary for the tube to be in a vacuum during thermionic emission?

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4. What is thermionic emission?

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5. In Thompson’s experiment, a a beam of electron travelling at 6.8 x 10^7m/s is bent into a circular path of radius 4cm in the magnetic of induction 10^-2 W/m2. Find the specific charge to mass (e/m)

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6. What type of radiation can be produced using cathode ray tubes?

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7. High beam of cathode ray in vacuum tube can be steered and manipulated by

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OAU PHY 203 Class Notes



This PDF is the class notes for OAU  PHY 203 during the 2022/2023 session.

It encompasses topics ranging from circuit theory and network theorems to Thevenin’s and Norton’s theorems, progressing further into AC circuits, transformers, physics of active devices, semiconductors, and more.

I will continually update this file as we proceed through the classes. Thank you.


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