Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace CHM 203 exam

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

Do not be in a hurry to answer the questions

Do not waste time on a question you don’t know

Move as fast as possible and starting with questions that don’t have calculation first to save time

Always crosscheck

Don’t be in a hurry to submit, you are not in a competition

Don’t be scared. Getting an A is easy

Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book

Please do well to use our comment box incase there’s a message you want to pass to us

70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

I wish you success

STREAM A GENERAL GRP

https://chat.whatsapp.com/GVAQriDPEgo2KVlYV26Jx7

STREAM B General Group

https://chat.whatsapp.com/DF9uJlVCfNIBv5PpK8zizy

To get latest school updates

https://wa.me/message/UCYVTYIVGGQNP1

I remain your favorite education blogger

❤️ Undergragra

150

Created on March 26, 2023 By

Ace/Undergragra

PHY 201

1 / 36

1. In Lorentzian relativity, if two events are simultaneous for one observer, they will be

simultaneous for all other observers as well.

A. False

B. True

2 / 36

2. In metals which of the following equation will hold good?

A. Curl(J)=dD/dt

B. Curl(H)=J

C. Curl(J)=dB/dt

D. Curl(H)=D

3 / 36

3. A particle of mass ‘m0’ moves with speed 0.8c, where ‘c’ is the speed of light in

vacuum.The relativistic kinetic energy of the particle is nearly

A. 1.66m0c^2

B. m0c ^2

C. 0.66m0c^2

D. 0.32m0c^2

4 / 36

4. In an electromagnetic wave, the electric field of amplitude 6.2V/m oscillates with a
frequency of 2.4X10
10Hz. The Energy density of the wave is__________

A. 2.4X10 ^-10 J/m^3

B. 4.4X10^ -10 J/m^ 3

C. 3.4X10^-10 J/m^ 3

D. 1.4X10^ -10 J/m^ 3

5 / 36

5. Increase in all inputs by a certain percentage resulting in a relatively higher percentage increase in output is referred to as:

A. Decreasing returns to scale

B. Increasing returns to scale

C. Law of variable proportion

D. Constant returns of scale

E. Diminishing Returns

6 / 36

6. The basic theorem/ principle used to obtain mass-energy relation is_____________

A. Maxwell Theorem

B. Work - Energy Theorem

C. Momentum Conservation Theorem

D. Heisenberg’s Uncertainty Principle

7 / 36

7. For Pair Production phenomenon to occur the photon must have energy,greater than

or equal to____________

A. 0.85MeV

B. 1.02MeV

C. 0.51MeV

D. 0.32MeV

8 / 36

8. If the velocity of a charged particle in perpendicular electric and magnetic field is

7.27X10^6 m/s and the Electric field is 6X10^6 N/c,what should be the value of magnetic

field for velocity sector?

A. 0.45 T

B. 0.78 T

C. 0.94 T

D. 0.83 T

9 / 36

9. The velocity of a charged particle to keep moving in the same direction, in a region

where electric and magnetic fields are perpendicular to each other ,is_______________

A. E/B

B. E/B+qE/B

C. B/E+qB/E

D. B/E

10 / 36

10. Magnetic field can be produced by___________

A. It is produced naturally

B. Displacement current

C. Both conduction and displacement current

D. Conduction current

11 / 36

11. Which of the following is the expression for Lorentz force

A. qE

B. ma+qE

C. qE+q(vXB)

D. q(vXB)

12 / 36

12. Two particles approach each other with a velocity of 0.9c.What is their relative

velocity as observed by A

A. 0.94c

B. 0.9c

C. 0

D. 0.99c

13 / 36

13. What would be the mass of the body at rest,i fit explodes into two objects of mass 2
kg each moving with a speed 0.8c relative to the original body

A. 4Kg

B. 6.7Kg

C. 5.4Kg

D. 6.2Kg

14 / 36

14. Which of the following laws do not form a Maxwell equation?

A. Gauss’s Law

B. Faraday’s Law

C. Ampere’s Law

D. Planck’s Law

15 / 36

15. The divergence of which quantity will be zero

A. E

B. B

C. D

D. H

16 / 36

16. In vacuum or free space, what observations are made?

A. ρ=ρo, J=0

B. ρ=0, J=0

C. ρ=ρo, J=Jo

D. ρ=0, J=Jo

17 / 36

17. The property of magnetic field to converge electrons is used in microscopes as

___________

A. Magnetic Lens

B. Magnetic Convergence

C. Magnetic plate

D. Magnetic field

18 / 36

18. Lorentz transformation equations hold for

A. Relativistic velocities only

B. All velocities: relativistic & non-relativistic

C. Photons only

D. Non - relativistic velocities only

19 / 36

19. Einstein energy mass equivalence is application on all the following except

A. Find the quality of the material

B. Radioactivity

C. Nuclear fission and fusion integration

D. Find binding energy in atomic Nucleus

20 / 36

20. Find the Flux enclosed of a material of Flux density 12 units in area of 80cm

A. 12/80

B. 9.6

C. 12/0.8

D. 80/12

21 / 36

21. The charge build up in the capacitor is due to which quantity?

A. Direct current

B. Convection current

C. Conduction current

D. Displacement current

22 / 36

22. When a particle is moving with a velocity of v light c relative to S, its velocity as

observed by an observer in the frame S

’ is_____________

A. Zero

B. c

C. 0.75c

D. 0.5c

23 / 36

23. A point charge of 10X10-6C is at the centre of a cubical Gaussian surface of sides
0.5m. What is the flux for the surface?

A. 3.45X10^5 Nm^2/C

B. 1.12X10^5 Nm^2/C

C. 3.12X10^5 Nm^2/C

D. 2.45X10^5 Nm^2/C

24 / 36

24. The entire theory of electromagnetic waves is contained in Maxwell’s equations.

A. False

B. Partly True

C. True

25 / 36

25. Differential form of Gauss’s law in magneto statics is_____________

A. div B=0

B. div B=ρ/εo

C. div B=μJ

D. div B=-dB/dT

26 / 36

26. Which of the following is the expression for the continuity equation?

A. dρ/dt+J=0

B. dρ/dt+div.J=0

C. ρ+divJ=0

D. ρ+J=0

27 / 36

27. Find the charge density when the electric Flux density is given by 2xi+3yj+4zk

A. 0

B. 10

C. 9

D. 24

28 / 36

28. Find the Maxwell law derived from Ampere law

A. Curl(H)=J

B. Curl(B)=D

C. Div(H)=J

D. Div(I)=H

29 / 36

29. In the case v<<c, Lorentz transformation is the same as____________

A. Maxwell’s transformation

B. Einstein’s transformation

C. Planck’s transformation

D. Galilean transformation

30 / 36

30. The Faraday’s law states about which type of EMF

A. TransformerE MF

B. Generator EMF

C. Back EMF

D. Secondary EMF

31 / 36

31. Lorentz transformations are based on the principle of consistency of the velocity of
light.

A. False

B. True

32 / 36

32. In which of the following form scan Maxwell’s equation not be represented?

A. Integral

B. Harmonic

C. Static

D. Differential

33 / 36

33. The output per unit of the variable factor employed is called

A. Productivity of labour

B. Total product

C. Average product

D. Marginal product

E. Average cost

34 / 36

34. Which of the following is Einstein’s mass energy relation?

A. E^2–p^2c^2=m0^ 2c^4

B. Ek=mv^2/c^2

C. Ek=(m–m0)c^2

D. E=mc^2

35 / 36

35. Two particles approach each other with a speed 0.8c with respect to the laboratory.

Their relative speed is___________

A. 0.95c

B. 0.975c

C. 0.85c

D. 0.912c

36 / 36

36. Find the electric Flux density of a material with charge density 16 units in unit volume

A. 16t

B. 162

C. 1/16

D. 16

Your score is

The average score is 49%

PHY 201 CBT PRACTICE TEST

Office

Related posts:

Office

Stay In Touch