JEE Advanced Model Paper 11 with solutions for online practice

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

f

2

respectively. Assume that threshold frequency of emitter is less than

f

2

. 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