Physics Mcqs

A. the threshold frequency for the metal surface
B. the intensity of incident light
C. the frequency of incident light and work function of the metal surface
D. all of the above

A. 6.625x1023N-s
B. 66.25x1023N-s
C. 662.5x1023N-s
D. data is insufficient

A. zero
B. hv/c2
C. hv/c
D. c2/hv

A. greater than one meter
B. less than one meter
C. one meter
D. a foolish question

A. a frame of reference which is either at rest or moves with a constant velocity is called an inertial frame of reference
B. an un-accelerated frame of reference is called an inertial frame of reference
C. all the frames of reference in uniform rectilinear motion are equivalent
D. Newtons laws of motion are valid in an accelerated (non inertial) frame of reference

A. 2.50 GWh
B. 25.00 GWh
C. 0.26 GWh
D. 250 GWh

A. T.V waves
B. Microwaves
C. X-rays
D. γ-rays

A. Ec2
B. E/c2
C. E/c
D. c2/E