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JEE Advanced Model Paper 11 with solutions for online practice

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Question : 9 of 60

Marks: +1, -0

The figure given below is the apparatus of photoelectric effect in which the light energy falling on emitter plate per unit time remains constant, but its frequency can be changed. I1 and I2 the photo currents registered when the light has frequencyf and

respectively. Assume that threshold frequency of emitter is less than

. The values of I1 and I2 (in above two cases) can be varied betweenzero and their saturated values by changing the magnitude and polarity of appliedvoltage V.

Select the correct statement(s) of the following

A positive value of V can exist so that I2 = 2 I1
negative value of V (reversed polarity) can exist so that I1 = I2
A negative value of V (reversed polarity) can exist so that I1 = 2I2
I2 > I1 for V = 0

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