The graphs show the variation of current $I$ (y-axis) in two photocells A & B as a function of the applied voltage V (x-axis) when light of same frequency is incident on the cell. Which of the following is the correct conclusion drawn from the data

Question

Smart Achievers · Accepted Answer

(1)

Saturation current is different so intensity is different but stopping potential is same and frequency is same so cathode material also same.

Solution

Q.
The graphs show the variation of current $I$ (y-axis) in two photocells A & B as a function of the applied voltage V (x-axis) when light of same frequency is incident on the cell. Which of the following is the correct conclusion drawn from the data

1 Cathodes of the two cells are made from the same substance, the intensity of light used are different

2 Cathodes are made from different substances and the intensity of light is the same

3 Cathode substances as well as intensity of light are different

4 No conclusion can be drawn

Ans.
(1)

Saturation current is different so intensity is different but stopping potential is same and frequency is same so cathode material also same.

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