In an electron microscope, we use energetic particles because of______________?

Related Mcqs:

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...

Linear momentum of a photon is_______________?

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

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...