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- 1. Multiple Choice
The special theory of relativity was developed by......
Galileo
Watson
Einstein
De broglie
- 2. Multiple Choice
The inertial frame of reference is.....frame of reference
Accelerated
Unaccelerated
Conjugate
All of these
- 3. Multiple Choice
Who formulated first the classical theory of relativity ?
Einstein
Galileo
De broglie
Watson
- 4. Multiple Choice
According to Einstein , velocity of light in free space is......
A same
a constant
Normal
Option a or b
- 5. Multiple Choice
The length of rod or object in motion with the velocity nearly equal to.C.......
Decrease
Increase
Constant
All of the above
- 6. Multiple Choice
The time of moving clock with velocity comparable to the velocity of light......
Decrease
Constant
Remains same
Increase
- 7. Multiple Choice
Mass of moving object always.....
Constant
Decrease
Increase
All of these
- 8. Multiple Choice
Michelson- Morley experiment was designed to predict the existence of.......
Carbon
Nitrogen
Oxide
Ether
- 9. Multiple Choice
All inertial frames are equivalent is called principle of.....
Conjugate
Relativity
Equivalence
Inertia
- 10. Multiple Choice
A rod length 2cm kept in a satellite with its length along the direction of motion. If the satellite has velocity 0.8c , calculate the length of the rod as measured by an observer (a) in the satellite (b) in the stationary laboratory.
L= 1.6 cm
L=1.3m
L=1.2m
None of these
- 11. Multiple Choice
A rocket leaves the earth with a velocity 0.8c .what is the time after which a clock in the rocket will lag behind by one second with a clock on earth ?
0.1second
2.3second
2.5 second
1.60 second
- 12. Multiple Choice
Radiation exibits.....nature.
Constant
Symmetry
Dual
None of these
- 13. Multiple Choice
Nature loves.......
Dual
Remain same
Symmetry
All of these
- 14. Multiple Choice
The theory of matter waves proposed by.....
Einstein
De broglie
Michelson
Watson
- 15. Multiple Choice
A wide wave group has clearly defined....
Phase
Interference
Wave
Wavelength
- 16. Multiple Choice
The wavelength of matter waves is independent of.....
Charge
Waves
Velocity
Momentum
- 17. Multiple Choice
If the particle velocity is C/2 ,then the phase velocity of the matter waves associated with the particle is........
1C
2C
3C
5C
- 18. Multiple Choice
Spin of electron is......
1/5
1/3
1/2
1/1
- 19. Multiple Choice
......is the most common type of coupling.
Rh
LS
RS
None
- 20. Multiple Choice
L- shell corresponds to n =.......
3
2
1
4
- 21. Multiple Choice
P- state correspond to L =.....
1
2
3
4
- 22. Multiple Choice
The larmour frequency of precession is given by......
eh/π
eh/2π
eh/4πm
eh/ m
- 23. Multiple Choice
Space quantization is the quantization of electron orbits with respect to.......
Magnitudes
Wavelength
Magnitude and direction
None of these
- 24. Multiple Choice
The phenomenon in which the frequency or wavelength of incident photon change due to scattering is known as......
Photoelectric effect
Raman effect
Zeeman effect
Compton effect
- 25. Multiple Choice
In Compton scattering ,the wavelength of scattered radiation.....
Decrease
Increase
Remains same
None of these
- 26. Multiple Choice
The maximum change in wavelength of scattered radiation is for scattering angle......
0°
90°
180°
45°
- 27. Multiple Choice
If the wavelength of the incident radiation is increased from 300nm to 301nm.find the corresponding change in the stopping potential.
dVs = 0.0111v
dVs =0.008v
dVs= 0.0138v
None of these
- 28. Multiple Choice
Conditions of the nuclear reactor......
The fissionable substance
Moderator , neutron reflector
Cooling system , control and safety system
All of these
- 29. Multiple Choice
Energy released per fission of U235is about.....
100Mev
200MeV
300MeV
400MeV
- 30. Multiple Choice
In chain reaction ,the number of neutrons goes on multiplying almost in........progression
Linear
Geometric
Exponential
None of these
- 31. Multiple Choice
The atomic programme in India was launched under the leadership of.....
C.N.R Rao
Dr.Homi.J Bhabha
C.V Raman
Kasturirangan
- 32. Multiple Choice
The function of moderator in nuclear reactor is to.......highly energetic neutrons
Accelerated
Speed up
Absorb
Slow down
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