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Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 6 (Q.No. 7)
Exam Questions Papers
7.
Consider following statements :
  1. Maximum energy of electrons liberated photoelectrically is independent of light intensity
  2. Maximum energy of electrons liberated photoelectrically varies nonlinearly with frequency of incident light.
statement (1) is true and (2) is false
statement (1) and (2) both are true
statement (1) is false and (2) is true
statement (1) and (2) both are false
Answer: Option
Explanation:

Statement 2 is false because maximum energy of photons varies linearly with frequency of incident light. It can be shown as follows

Photocurrent Vs Anode voltage with frequency and incident light as parameter the light intensity is constant.

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