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Q.

The kinetic energy of the ejected electrons in photoelectric effect is

  1. Directly proportional to the frequency of the incident radiation.
  2. Inversely proportional to the frequency of the incident radiation.
  3. Not related to the frequency of the incident radiation

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a

2 only 

b

1 and 3 only

c

1 only

d

1 and 2 only

answer is A.

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Detailed Solution

A more intense beam of light would eject electrons with greater energy than a less intense beam. whereas, kinetic energy is directly proportional to the frequency of the incident radiation

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