Set of physics CEE -2

Posted by Nepal Quiz

Friday, 27 December 2024

_Physics

Physics MCQs for CEE/NEB Entrance

What is the SI unit of power?

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

A ball is dropped from a height of 20 m. What is the time taken to reach the ground? (Take $g = 10 \, m/s^2$ )

a) 1 second
b) 2 seconds
c) 3 seconds
d) 4 seconds

A lens with a focal length of 20 cm is used. What type of lens is it if it converges light rays?

a) Convex lens
b) Concave lens
c) Diverging lens
d) None of the above

Which law states that the current flowing through a conductor is directly proportional to the voltage applied across it?

a) Faraday's Law
b) Coulomb's Law
c) Ohm's Law
d) Ampere's Law

What is the dimensional formula of force?

a) $[MLT^{-2}]$
b) $[ML^{-1}T^2]$
c) $[M^2L^2T^{-2}]$
d) $[ML^2T^{-1}]$

What is the escape velocity on Earth?

a) 7.9 km/s
b) 8.6 km/s
c) 11.2 km/s
d) 12.8 km/s

Which physical quantity is conserved in elastic collisions?

a) Energy
b) Momentum
c) Both energy and momentum
d) Neither energy nor momentum

The speed of light in a vacuum is:

a) $3 \times 10^6 \, m/s$
b) $3 \times 10^8 \, m/s$
c) $3 \times 10^{10} \, m/s$
d) None of the above

A pendulum completes one oscillation in 2 seconds. What is its frequency?

a) 0.25 Hz
b) 0.5 Hz
c) 1 Hz
d) 2 Hz

Which quantity is scalar?

a) Force
b) Velocity
c) Power
d) Momentum

The time period of a satellite in a geostationary orbit is:
- a) 12 hours
- b) 24 hours
- c) 48 hours
- d) 96 hours
The ratio of stress to strain is known as:
- a) Young's Modulus
- b) Bulk Modulus
- c) Shear Modulus
- d) Elastic Limit
Which of the following is a vector quantity?
- a) Work
- b) Energy
- c) Displacement
- d) Temperature
What is the unit of electric charge?
- a) Joule
- b) Coulomb
- c) Ampere
- d) Volt
The acceleration of a body moving in a circle is called:
- a) Tangential acceleration
- b) Angular acceleration
- c) Centripetal acceleration
- d) Radial acceleration
What is the dimensional formula of work?
- a) $[MLT^{-2}]$
- b) $[ML^2T^{-2}]$
- c) $[M^2LT^{-1}]$
- d) $[ML^3T^{-3}]$
The kinetic energy of a body depends on:
- a) Mass
- b) Velocity
- c) Both mass and velocity
- d) Neither mass nor velocity
In an AC circuit, the opposition to current is called:
- a) Resistance
- b) Reactance
- c) Impedance
- d) Conductance
What is the SI unit of magnetic field?
- a) Tesla
- b) Weber
- c) Gauss
- d) Ampere
Which instrument is used to measure atmospheric pressure?
- a) Barometer
- b) Thermometer
- c) Hygrometer
- d) Anemometer

Sound waves are:
- a) Transverse waves
- b) Longitudinal waves
- c) Electromagnetic waves
- d) None of the above
The wavelength of visible light ranges from:
- a) 400-700 nm
- b) 700-900 nm
- c) 100-400 nm
- d) 1-100 nm
The efficiency of a Carnot engine depends on:
- a) Temperature of the source only
- b) Temperature of the sink only
- c) Both source and sink temperatures
- d) None of the above
What is the speed of sound in air at room temperature?
- a) 300 m/s
- b) 340 m/s
- c) 400 m/s
- d) 500 m/s
The unit of Planck's constant is:
- a) $Js$
- b) $Jm$
- c) $J/s$
- d) $Nm$

The refractive index of a medium is the ratio of:
- a) Speed of light in vacuum to the speed of light in the medium
- b) Speed of light in the medium to the speed of light in vacuum
- c) Wavelength of light in vacuum to the wavelength of light in the medium
- d) Wavelength of light in the medium to the wavelength of light in vacuum
The angular displacement of an object in rotational motion is measured in:
- a) Radians
- b) Meters
- c) Kilograms
- d) Seconds
In the Bohr model, the energy of an electron in the nth orbit is given by:
- a) $E_n = - \frac{k}{n^2}$
- b) $E_n = \frac{k}{n^2}$
- c) $E_n = \frac{n^2}{k}$
- d) $E_n = - \frac{n^2}{k}$
The total energy of an object in a simple harmonic motion is:
- a) Always zero
- b) The sum of potential and kinetic energy
- c) Only kinetic energy
- d) Only potential energy
The unit of electric field strength is:
- a) Volt
- b) Newton per Coulomb
- c) Ampere
- d) Joule

What is the focal length of a convex lens of power +2 diopters?
- a) +0.5 m
- b) +2 m
- c) -2 m
- d) -0.5 m
A body of mass 2 kg is moving with a velocity of 3 m/s. What is its momentum?
- a) 1 kg·m/s
- b) 3 kg·m/s
- c) 6 kg·m/s
- d) 9 kg·m/s
The phenomenon of bending of light around corners of obstacles is called:
- a) Refraction
- b) Diffraction
- c) Reflection
- d) Dispersion
What is the SI unit of capacitance?
- a) Farad
- b) Coulomb
- c) Tesla
- d) Ampere
Which of the following is not a fundamental force?
- a) Gravitational force
- b) Electromagnetic force
- c) Nuclear force
- d) Frictional force
The electric potential at a point is defined as the work done in moving a unit charge from:
- a) Infinity to the point
- b) Point to infinity
- c) One point to another
- d) None of the above
The energy stored in a capacitor is given by:
- a) $\frac{1}{2} C V^2$
- b) $\frac{1}{2} m v^2$
- c) $C V$
- d) $C V^2$
The center of mass of a system of particles:
- a) Always lies within the system
- b) Is the point at which the entire mass of the system is concentrated
- c) Is always outside the system
- d) None of the above
A charged particle moving in a magnetic field experiences:
- a) A force parallel to its velocity
- b) A force perpendicular to its velocity
- c) A force opposite to its velocity
- d) No force
What is the force between two charges $q_1$ and $q_2$ placed at a distance $r$ in vacuum?
- a) $F = \frac{k q_1 q_2}{r^2}$
- b) $F = \frac{q_1 q_2}{r^2}$
- c) $F = \frac{k}{r^2}$
- d) $F = k q_1 q_2 r^2$

The total mechanical energy of a body in simple harmonic motion is:
- a) Constant
- b) Varying
- c) Zero
- d) None of the above
The gravitational potential energy of an object depends on:
- a) Its mass and velocity
- b) Its mass and height
- c) Its velocity and height
- d) Its temperature and mass
Which of the following is the most energetic form of electromagnetic radiation?
- a) Radio waves
- b) Microwaves
- c) Gamma rays
- d) Infrared radiation
Which of the following waves can travel through a vacuum?
- a) Sound waves
- b) Water waves
- c) Light waves
- d) None of the above
The unit of electric current is:
- a) Ampere
- b) Volt
- c) Ohm
- d) Watt

What happens to the resistance of a conductor when its length is doubled?
- a) It remains the same
- b) It becomes half
- c) It doubles
- d) It quadruples
The speed of a satellite in orbit depends on:
- a) Its altitude above the Earth's surface
- b) The mass of the satellite
- c) The Earth's mass
- d) Both a and c
The frequency of a wave is:
- a) The number of oscillations per unit time
- b) The time taken to complete one oscillation
- c) The speed of the wave
- d) The wavelength of the wave
Which of the following is a property of electromagnetic waves?
- a) They need a medium to travel
- b) They are transverse waves
- c) They cannot travel in a vacuum
- d) They travel at a variable speed
The potential difference across a resistor in a circuit is:
- a) Directly proportional to the current
- b) Inversely proportional to the current
- c) Unrelated to the current
- d) Zero

Answer Key

This set of questions and answers

Nepal Quiz

Friday, 27 December 2024