MCQ on Special Theory of Relativity with Answers. We covered all the MCQ on Special Theory of Relativity with Answers in this post for free so that you can practice well for the exam.
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MCQ on Special Theory of Relativity for Students
Michaelson-Morely experiment was performed to
1. to measure the speed of the earth relative to others
2. to measure the speed of light
3. to study the isotropy of space
4. none of above
Option 1 – to measure the speed of the earth relative to others
Two photons recede from each other, their relative velocity will be
1. C/3
2. 2C
3. 3C
4. 1C
Option 4 – 1C
Two bodies of the same momentum have different masses, the total mass energy will be greater than
1. heavier body
2. lighter body
3. average body
4. none of above
Option 1 – heavier body
A stick of one meter in length is moving away from an observer at a speed of 0.80C. The observer will see the length of the stick as
1. 0.6m
2. 1.255 cm
3. 1cm
4. 1.66 m
Option 1 – 0.6m
Which of the following is an example of the general theory of relativity
1. A ray of light is sent by the sun’s gravitational field
2. There is an advance in the perihelion of mercury’s orbit
3. both (1) and (2) are related
4. none of above
Option 3 – both (1) and (2) are related
What would be the total energy of an electron if its kinetic energy is equal to 2.53 MeV?
1. 3.04 MeV
2. 304 MeV
3. 0.304 MeV
4. 30.4 MeV
Option 1 – 3.04 MeV
Rest mass of the photon
1. zero
2. unity
3. as in motion
4. infinity
Option 1 – zero
The state in which the body has minimum energy.
1. in the motion
2. in the acceleration
3. in the rest
4. in the vibration
Option 3 – in the rest
The special theory of relativity is proposed by
1. Galileo
2. Newton
3. Lorentz
4. Einstein
Option 4 – Einstein
The percentage increase in the mass of the body traveling with the velocity 3/5 C?
1. 30%
2. 40%
3. 25%
4. 20%
Option 3 – 25%
The hydrogen spectrum based on the phenomenon of change of velocity of an electron with mass was explained by the scientist.
1. Einstein
2. Newton
3. Sommerfield
4. Raman
Option 3 – Sommerfield
A square is traveling with the velocity of light in its diagonal direction. The observer in the rest observes it as
1. square
2. rectangle
3. parallelogram
4. rhombus
Option 4 – rhombus
In this case, the theory of relativity coincides with Newton’s theory.
1. less acceleration
2. small velocities compared to ‘C’
3. at high velocities
4. at any velocity
Option 4 – at any velocity
If the body is accelerated without the influence of an external force, the frame of reference is
1. Inertial frame of reference
2. The non-inertial frame of reference
3. Galilean transformation
4. None of these
Option 2 – The non-inertial frame of reference
A body mass m falls through h meters. The decrease in its mass is equivalent to
1. mgh/C²
2. mgh/C
3. mghC²
4. none of these
Option 1 – mgh/C²
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