A photocell is illuminated by a small bright source placed 1 m away. When the same source of light is placed \frac{1}{2} m away, the number of electrons emitted by photo-cathode would [AIEEE 2005]

Correct Answer is : increases by a factor of 4

AIEEE 2005 Physics Solved Paper

Section: Physics

Question : 70 of 74

Marks: +1, -0

A photocell is illuminated by a small bright source placed 1m away. When the same source of light is placed ‌

m away, the number of electrons emitted by photo-cathode would

[AIEEE 2005]

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