A cesium photocell with a steady potential difference of 60 V across it, is illuminated by a small bright light placed 1 m away.

Question 1

A cesium photocell with a steady potential difference of 60 V across it, is illuminated by a small bright light placed 1 m away. When the same light is placed 2 m away, the electrons crossing the photocell-

(A) Each carry one quarter of their previous momentum

(B) Each carry one quarter of their previous energy

(C) Are one quarter as numerous

(D) Are half as numerous

Question 2

Correct option (C) Are one quarter as numerous

Explanation:

A cesium photocell with a steady potential difference of 60 V across it, is illuminated by a small bright light placed 1 m away.

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A cesium photocell with a steady potential difference of 60 V across it, is illuminated by a small bright light placed 1 m away.

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