| Statement-1: If the distance between the light' source and the cathode of the cell is doubled, the stopping potential is doubled. |
| Statement-2: The intensity of light from a point source is inversely proportional to square of distance from the source. |
A) Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.
B) Statement-1 is false, Statement-2 is true.
C) Statement-1 is true, Statement-2 is true and Statement-2 is NOT the correct explanation for statement-1
D) Statement-1 is true, Statement-2 is false.
Correct Answer: B
Solution :
On doubling the distance between the light source and the cathode of the cell the intensity of light incident on the photocell becomes on fourth. As stopping potential does not depend on intensity, the stopping potential remains unchanged.
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