Rest mass of a photon is:
A. infinite
B. zero
C. very small
D. 1.67 x 10-27 kg
If a material object moves with speed of light its mass becomes:
A. equal to its rest mass
B. double of its rest mass
C. infinite
D. zero
The existence of Ether wind was experimentally rejected by:
A. equal to its rest mass
B. double of its rest mass
C. infinite
D. zero
The linear momentum of an X-ray photon of wavelength 0.1A is:
A. 6.625x1023N-s
B. 66.25x1023N-s
C. 662.5x1023N-s
D. data is insufficient
Linear momentum of a photon is:
A. zero
B. hv/c2
C. hv/c
D. c2/hv
0.001 kg mass will be equivalent to:
A. 2.50 GWh
B. 25.00 GWh
C. 0.26 GWh
D. 250 GWh
Which one of the following radiations has the strongest photon:
A. T.V waves
B. Microwaves
C. X-rays
D. γ-rays
The relativistic energy E is equivalent to relativistic mass given by:
A. Ec2
B. E/c2
C. E/c
D. c2/E
The energy absorbed by a body is _____at resonance:
A. Maximum as well minimum
B. Minimum only
C. Maximum only
D. 0
In case of a simple pendulum, the cause of damping is:
A. Drag force of air
B. Gravity
C. Tension in the string
D. None of these
