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Question

The photoelectric current can be increased by
  1. Increasing frequency
  2. Decreasing wavelength
  3. Increasing intensity
  4. Decreasing intensity

A
Decreasing wavelength
B
Increasing frequency
C
Decreasing intensity
D
Increasing intensity
Solution
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Current in the photoelectric effect is directly proportional to the intensity of the incident light. So,to increase current we have to increase intensity of the light.
Current is independent of frequency and wavelength of the incident light.

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