Dual Nature of Radiation and Matter - Result Question 53

57. As the intensity of incident light increases (a) photoelectric current increases [1999]

(b) K. E. of emitted photelectrons increases

(c) photoelectric current decreases

(d) K.E. of emitted photoelectrons decreases

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Answer:

Correct Answer: 57. (a)

Solution:

  1. (a) K.E. of electrons emitted depends upon the frequency of incident rays rather than the intensity. While number of photo electrons emitted depends upon intensity of radiation.