If the wavelength of incident radiation in a photoelectric experiment is decreased then

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the photoelectric current will decrease.

the photoelectric current will increase.

the stopping potential will decrease.

the stopping potential will increase.

answer is D.

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Detailed Solution

Change in wavelength of incident light has no effect on the photocurrent.

Decreasing the wavelength of incident radiation means energy of incident light is increased, so kinetic energy of photoelectron increases and hence stopping potential also increases.

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