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Q.

Two different radiations having wavelength less than threshold wavelength are incident on similar
photoelectric cells. If both cells are receiving same energy per second per unit area, then saturation current is

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a

Higher for high frequency radiation

b

Zero for both radiation

c

Same for both radiation

d

Higher for low frequency radiation

answer is A.

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Detailed Solution

n1hv1=n2hv2 for same energy per second. If v1<v2      n1>n2 and saturation current will be higher.

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