The period of a circular motion is given by_______________?
The period of a circular motion is given by_______________?
A. T = πv
B. T = πw
C. T = 2πr
D. T = 2πr/v
A. T = πv
B. T = πw
C. T = 2πr
D. T = 2πr/v
A. 0.9sec
B. 15 sec
C. 1.5x105sec
D. 0.9x102sec
A. 42000km
B. 36000km
C. 24000 km
D. 18000 km
A. Penetrating power is high
B. Kinetic energy is large
C. Wavelength is very short
D. All the above reasons
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. Directly proportional to extension
B. Directly proportional to strain
C. Directly proportional to square of amplitude
D. Inversely proportional to extension
A. equal to its rest mass
B. double of its rest mass
C. infinite
D. zero