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Q.

The time taken by a photoelectron to come out after the photon strikes is approximately:

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a

10-16 s

b

10-10 s

c

10-1 s

d

10-4 s

answer is C.

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Detailed Solution

The photoelectric effect is an instantaneous phenomenon (experimentally proved). It takes approximately, time of the order of 10-10  s. 

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