A photon is________________?

Related Mcqs:

Mark the wrong statement ?

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 … Mark the wrong statement ?Read More...

An observer shoots parallel to a meter stick at very high (relativistic) speed and finds that the length of meter stick is________________?

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

Tick the right statement?

A. no photo electronic emission takes place if the frequency of radiation however intense it may be is less than a certain critical value called threshold frequency B. threshold frequency depends upon the nature of the metal surface C. maximum energy of a photoelectron is a function of frequency rather than intensity of radiation D. … Tick the right statement?Read More...

Which one of the following has the largest energy content ?

A. 103 photons of wavelength 2 pm (γ-rays) B. 102 photons of wavelength 1nm (x-rays) C. 106 photons of wavelength 50?m (infrared) D. 106 photons of wavelength 200nm (UV)...

A transmitting station emits radio waves of wavelength λ at power P. If h is Planck’s constant & c the speed of light what is the rate of emission of photons ?

A. λ B. Speed of sound C. Speed of lightB. D. h...