Statement-1 : When ultraviolet light is incident on a photocell,

+1 vote
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asked Mar 27, 2018 in Physics by paayal (26,720 points) 4 6 53

Statement-1 : When ultraviolet light is incident on a photocell, its stopping potential is V0 and the maximum kinetic energy of the photoelectrons is Kmax. When the ultraviolet light is replaced by X-rays, both V0 and Kmax increase.
Statement-2 : Photoelectrons are emitted with speeds ranging from zero to a maximum value because of the range of frequencies present in the incident light. 

(a) Statement-1 is true, Statement-2 is false. 

(b) Statement-1 is true, Statement-2 is true; Statement-2 is the correct explanation of Statement-1.
(c) Statement-1 is true, Statement-2 is true; Statement-2 is not the correct explanation of Statement-1.
(d) Statement-1 is false, Statement-2 is true.

1 Answer

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answered Mar 27, 2018 by sanjaydas (61,430 points) 5 7 7
selected Mar 28, 2018 by Vikash Kumar
 
Best answer

(a) : According to Einstein’s photoelectric equation

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