Special theory of relativity
Which of the following is invariant under galilean transformation ?
- Velocity
- Speed
- Acceleration
- Displacement
Answer:- 3
One of the postulates of special theory of relativity is
- Einstein
- Galileo
- Richardson
- Lorentz
Answer:- 4
If a moving circle is observed perpendicularly then it appears to be ?
- Circular
- Hyperbolic
- Parabolic
- Elliptical
Answer:- 4
which are the correct rules of coriolis acceleration ?
- Formation of cyclone
- Flight of missile
- Both of these
- None of these
Answer:- 3
Michelson morley experiment was based upon ?
- Interference of light
- Reflection of light
- Refraction of light
- Polarisation of light
Answer:- 1
The velocity at which the mass of a particle becomes 1.25 times to its rest mass is ?
- 1c
- 0.6c
- 5c
- None of these
Answer:- 2
The rest mass of photon is ?
- Zero
- 9.9 x 10¹⁶g
- 1.936 x 10³⁶g
- None of these
Answer:- 1
The momentum of a photon of energy "e" moving with a speed "c" is
- ec
- e/c
- ec²
- e/c²
Answer:- 2
If total energy of a body is "E" then it is equivalent to an inertial mass of ?
- ec
- e/c
- ec²
- e/c²
Answer:- 4
Value of acceleration due to gravity at pole is ?
- Maximum
- Minimum
- Zero
- None of these
Answer:- 3
One of the postulates of special theory of relativity is ?
- Time is relative
- Mass is relative
- Speed of light is same in all inertial frames
- Speed of light is relative
Answer:- 3
The value of acceleration due to gravity at equator is ?
- Decreases by a²R
- Increases by a²R
- Equal to a²R
- None of the above
Answer:- 1
Two photons approach each other then their relative velocity will be ?
- 2c
- C
- Zero
- C/2
Answer:- 2
If 1 kg mass is completely converted into energy the amount of energy obtained is ?
- 9 x 10¹⁶ Mev
- 9 x 10¹⁶ J
- 9 x 10¹⁶ kwh
- All of the above
Answer:- 2
The shape of a square moving at relativistic speed relative to a stationary observer appears to be ?
- Rectangular
- Elliptical
- Circular
- Point like
Answer:- 1
The limitations on the motion of a particle or system of particles is called ........
- Degree of freedom
- Constraints
- Both of the above
- None of these
Answer:- 2
The mass of an object can be made double to its value at rest at a speed of ?
- 3 x 10⁸ m/s
- 2.6 x 10⁸ m/s
- 1.6 x 10¹⁸ m/s
- None of the above
Answer:- 2
Galilean transformation equations are valid for ?
- V >>> C
- V <<< C
- V = C
- None of the above
Answer:- 2
The velocity "v" added relativistically to the velocity of light "C" give the result
- 2c
- C²
- C
- 1/2 c²
Answer:- 3
There are ............. Fundamental postulates of the special theory of relativity
- Two
- Three
- Four
- Five
Answer:- 1
Postulates of Einstein's special theory of relativity defines
- The laws of physical are the same to all inertial system
- The speed of light in free space has the same value in all nertial system
- Both of the above
- None of the above
Answer:- 3
Two particles are moving opposite direction to each other with a speed of 0.9c, then the velocity of one particle relative to other will be ?
- Zero
- 1.8c
- 0.9c
- 0.994c
Answer:- 4
