NEET Questions Solved

NEET - 2010

When monochromatic radiation of intensity I falls on a metal surface, the number of photoelectrons and their maximum kinetic energy are N and T respectively. If the intensity of radiation is 2I, the number of emitted electrons and their maximum kinetic energy are respectively 

(a) N and 2T                                 (b) 2N and T

(c) 2N and 2T                                (d) N and T

(i) Kinetic energy of photoelectrons depends on the frequency of incident radiations and is independent
     of the intensity of illumination.

(ii) Number of photoelectrons depends upon the intensity.

So, the number of emitted electrons and their maximum kinetic energy are 2N and T respectively. 

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