Assertion: The kinetic energy of photoelectron ejected increases with the frequency of incident light. Reason: Increase in intensity of incident light increases the photoelectric current.

Question

Assertion: The kinetic energy of photoelectron ejected increases with the frequency of incident light. Reason: Increase in intensity of incident light increases the photoelectric current. (A) If both Assertion and Reason are correct and the Reason is a correct explanation o f the Assertion. (B) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion. (C) If the Assertion is correct but Reason is incorrect. (D) If the Assertion is incorrect but Reason is correct.

Tardigrade Admin · Accepted Answer

K.E. =h(v-v0) ; K.E. increases linearly with v, the frequency. The rate of emission of photoelectrons i.e., the photoelectric current is directly proportional to the rate of impinging photons i.e. the intensity of light.

Q. Assertion : The kinetic energy of photoelectron ejected increases with the frequency of incident light.
Reason : Increase in intensity of incident light increases the photoelectric current.

If both Assertion and Reason are correct and the Reason is a correct explanation o f the Assertion.

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

If the Assertion is correct but Reason is incorrect.

If the Assertion is incorrect but Reason is correct.

K.E. $= h (v - v_{0});$ K.E. increases linearly with $v$ , the frequency. The rate of emission of photoelectrons i.e., the photoelectric current is directly proportional to the rate of impinging photons i.e. the intensity of light.

Q. Assertion : The kinetic energy of photoelectron ejected increases with the frequency of incident light. Reason : Increase in intensity of incident light increases the photoelectric current.