Question

If the intensity of the radiation is doubled then the photo emission will be
A. Doubled
B. Four times
C. Half
D. Eight times

Answer 1

Answer:

For a given photo metal if the frequency and applied voltage is kept constant with increasing intensity then we observe that photo current increases with increases in intensity with out change in the stopping potential.The photocurrent is directly proportional to the number of photoelectrons emitted.Hence, if the intensity of incident light is made double, then the maximum number of emitted electrons will become double.So, the answer is option (A).

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