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  • If the distance of 100 watt lamp is increased from a photo cell, the saturation current ‘i’ in the photocell varies with the distance d as-Option: 1<

If the distance of 100 watt lamp is increased from a photo cell, the saturation current ‘i’ in the photocell varies with the distance d as-

Option: 1

\mathrm{i\propto d^{2}}


Option: 2

\mathrm{i\propto d}


Option: 3

\mathrm{i} \propto \frac{1}{\mathrm{~d}}


Option: 4

\mathrm{i} \propto \frac{1}{\mathrm{~d}^2}


Answers (1)

best_answer

Photoelectric current is directly proportional to intensity of incident light. Also, intensity of light is inversely proportional to square of distance.

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Divya Prakash Singh

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