Set of Physics CEE-2

Posted by Nepal Quiz

الجمعة، 27 ديسمبر 2024

_Physics

 Set of Physics CEE-2

1. The unit of electric current is:

a) Ampere
b) Volt
c) Ohm
d) Watt

2. Which of the following is a scalar quantity?

a) Velocity
b) Displacement
c) Force
d) Speed

3. The velocity of light in a vacuum is approximately:

a) $3 \times 10^8 \, \text{m/s}$
b) $1 \times 10^8 \, \text{m/s}$
c) $2 \times 10^8 \, \text{m/s}$
d) $5 \times 10^8 \, \text{m/s}$

4. The work done by a constant force is given by the equation:

a) $W = F \times v$
b) $W = F \times d$
c) $W = F \times \Delta t$
d) $W = \frac{1}{2} m v^2$

5. What is the SI unit of power?

a) Joule
b) Watt
c) Newton
d) Ampere

6. A body moves with constant velocity. Its acceleration is:

a) Zero
b) Constant
c) Increasing
d) Decreasing

7. The force required to produce a given acceleration is proportional to the:

a) Velocity
b) Mass
c) Kinetic energy
d) Displacement

8. Which of the following quantities is a vector?

a) Speed
b) Mass
c) Distance
d) Force

9. The center of mass of a uniform solid sphere lies at:

a) At the surface
b) At the center
c) At a point just below the center
d) At the edge of the sphere

10. A car accelerates from 10 m/s to 20 m/s in 10 seconds. What is its acceleration?

a) 0 m/s²
b) 1 m/s²
c) 2 m/s²
d) 5 m/s²

11. The speed of a wave is given by the product of its:

a) Frequency and wavelength
b) Wavelength and amplitude
c) Frequency and time period
d) Frequency and velocity

12. Which of the following is an example of a non-renewable energy source?

a) Solar energy
b) Wind energy
c) Coal
d) Geothermal energy

13. What is the principle behind the working of a hydraulic press?

a) Archimedes' principle
b) Pascal's principle
c) Bernoulli's principle
d) Newton's law of motion

14. What is the refractive index of a medium if the angle of incidence is 30° and the angle of refraction is 22°?

a) 1.22
b) 1.50
c) 1.75
d) 2.00

15. The force between two point charges is given by Coulomb's law. The force is inversely proportional to the:

a) Distance between the charges
b) Square of the distance between the charges
c) Cube of the distance between the charges
d) Product of the charges

16. Which of the following electromagnetic waves has the longest wavelength?

a) Radio waves
b) Microwaves
c) X-rays
d) Gamma rays

17. The energy stored in a stretched spring is called:

a) Kinetic energy
b) Potential energy
c) Elastic potential energy
d) Thermal energy

18. The period of a simple pendulum depends on:

a) Mass of the bob
b) Length of the pendulum
c) Amplitude of oscillation
d) Gravitational acceleration

19. Which of the following is the main source of energy in stars like the Sun?

a) Nuclear fission
b) Nuclear fusion
c) Chemical energy
d) Gravitational energy

20. The force experienced by a current-carrying conductor placed in a magnetic field is called:

a) Gravitational force
b) Magnetic force
c) Electrostatic force
d) Centripetal force

21. Which of the following properties of light does NOT change when it passes through a medium?

a) Speed
b) Wavelength
c) Frequency
d) Amplitude

22. The unit of capacitance is:

a) Ohm
b) Coulomb
c) Farad
d) Volt

23. A sound wave is an example of:

a) Transverse wave
b) Longitudinal wave
c) Electromagnetic wave
d) Both transverse and longitudinal wave

24. The SI unit of electric charge is:

a) Ampere
b) Coulomb
c) Volt
d) Joule

25. Which of the following is the correct formula for calculating the power dissipated in a resistor?

a) $P = V \times I$
b) $P = I^2 \times R$
c) $P = \frac{V^2}{R}$
d) All of the above

26. The temperature at which the resistance of a material becomes zero is called:

a) Melting point
b) Boiling point
c) Curie point
d) Absolute zero

27. What is the total energy of a system in motion called?

a) Potential energy
b) Kinetic energy
c) Mechanical energy
d) Internal energy

28. The SI unit of force is:

a) Newton
b) Joule
c) Watt
d) Pascal

29. Which of the following properties of sound increases with an increase in temperature?

a) Wavelength
b) Amplitude
c) Speed
d) Frequency

30. The time taken for one complete cycle of a wave is called its:

a) Frequency
b) Period
c) Amplitude
d) Wavelength

31. The SI unit of pressure is:

a) Pascal
b) Newton
c) Joule
d) Watt

32. The energy required to raise the temperature of 1 kg of water by 1°C is called:

a) Specific heat
b) Latent heat
c) Enthalpy
d) Thermal conductivity

33. The force that opposes the relative motion of two bodies in contact is called:

a) Gravitational force
b) Electrostatic force
c) Frictional force
d) Tension force

34. Which of the following is a vector quantity?

a) Temperature
b) Distance
c) Displacement
d) Speed

35. Which of the following phenomena demonstrates the particle nature of light?

a) Reflection
b) Refraction
c) Photoelectric effect
d) Diffraction

36. The ability of a material to return to its original shape after being deformed is called:

a) Elasticity
b) Plasticity
c) Toughness
d) Brittleness

37. The image formed by a plane mirror is:

a) Real, inverted, and diminished
b) Virtual, upright, and same size
c) Real, upright, and magnified
d) Virtual, inverted, and reduced

38. The energy stored in an electric field is known as:

a) Kinetic energy
b) Gravitational energy
c) Electric potential energy
d) Thermal energy

39. The relationship between pressure and volume of a gas is given by:

a) Boyle’s Law
b) Charles’s Law
c) Avogadro’s Law
d) Ideal Gas Law

40. The speed of sound in air is about:

a) 300 m/s
b) 343 m/s
c) 500 m/s
d) 1000 m/s

41. The force between two charges is doubled when:

a) The distance is halved
b) The distance is doubled
c) The charges are halved
d) The charges are doubled

42. The intensity of a sound wave is proportional to:

a) The square of the amplitude
b) The amplitude
c) The inverse of the square of the amplitude
d) The wavelength

43. A body is in equilibrium if:

a) The sum of forces acting on it is zero
b) The sum of moments acting on it is zero
c) Both of the above

d) Neither of the above

44. What is the potential energy of an object at a height $h$ above the ground?

a) $mgh$
b) $\frac{1}{2} mv^2$
c) $mg$
d) $mgh^2$

45. Which of the following is a correct statement of the law of conservation of energy?

a) Energy cannot be created or destroyed
b) Energy can only be created
c) Energy is always converted into heat
d) Energy can only be destroyed

46. The force that causes a body to move in a circular path is called:

a) Centripetal force
b) Gravitational force
c) Frictional force
d) Tension

47. The unit of electrical resistance is:

a) Ampere
b) Volt
c) Ohm
d) Watt

48. The magnetic field inside a solenoid is:

a) Zero
b) Uniform and parallel
c) Uniform and perpendicular
d) Non-uniform and radial

49. The Law of Conservation of Momentum holds when:

a) No external force is acting on the system
b) The forces within the system are balanced
c) The system is closed
d) Both a and c

50. What is the energy transformation in a mechanical watch?

a) Mechanical to thermal energy
b) Electrical to mechanical energy
c) Kinetic to mechanical energy
d) Potential to mechanical energy

Answer Key:

1. a) Ampere
2. d) Speed
3. a) $3 \times 10^8 \, \text{m/s}$
4. b) $W = F \times d$
5. b) Watt
6. a) Zero
7. b) Mass
8. d) Force
9. b) At the center
10. c) 2 m/s²
11. a) Frequency and wavelength
12. c) Coal
13. b) Pascal's principle
14. a) 1.22
15. b) Square of the distance between the charges
16. a) Radio waves
17. c) Elastic potential energy
18. b) Length of the pendulum
19. b) Nuclear fusion
20. b) Magnetic force
21. c) Frequency
22. c) Farad
23. b) Longitudinal wave
24. b) Coulomb
25. d) All of the above
26. c) Curie point
27. c) Mechanical energy
28. a) Newton
29. c) Speed
30. b) Period
31. a) Pascal
32. a) Specific heat
33. c) Frictional force
34. c) Displacement
35. c) Photoelectric effect
36. a) Elasticity
37. b) Virtual, upright, and same size
38. c) Electric potential energy
39. a) Boyle’s Law
40. b) 343 m/s
41. a) The distance is halved
42. a) The square of the amplitude
43. c) Both of the above
44. a) $mgh$
45. a) Energy cannot be created or destroyed
46. a) Centripetal force
47. c) Ohm
48. b) Uniform and parallel
49. d) Both a and c
50. d) Potential to mechanical energy