In a photoelectric experiment anode potential is plotted against plate current. [2004]

Question

Smart Achievers · Accepted Answer

(4)

Saturation current $\propto$ (intensity) and stopping potential increase with increase in frequency. From the graph it is clear that A and B have the same stopping potential and therefore, the same frequency. Also, B and C have the same intensity.

Solution

Q.
In a photoelectric experiment anode potential is plotted against plate current. [2004]

1 A and B will have different intensities while B and C will have different frequencies.

2 B and C will have different intensities while A and C will have different frequencies.

3 A and B will have different intensities while A and C will have equal frequencies.

4 B and C will have equal intensities while A and B will have same frequencies.

Ans.
(4)

Saturation current $\propto$ (intensity) and stopping potential increase with increase in frequency. From the graph it is clear that A and B have the same stopping potential and therefore, the same frequency. Also, B and C have the same intensity.

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