Medium MCQ +4 / -1 PYQ · JEE Mains 2023

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R

Assertion A : Photodiodes are preferably operated in reverse bias condition for light intensity measurement.

Reason R : The current in the forward bias is more than the current in the reverse bias for a $p-n$ junction diode.

In the light of the above statements, choose the correct answer from the options given below :

  1. A Both A and R are true and R is the correct explanation of A
  2. B A is false but R is true
  3. C A is true but R is false
  4. D Both A and R are true but R is NOT the correct explanation of A Correct answer

Solution

Photodiodes are preferably operated in reverse bias condition for light intensity measurement because it increases the width of depletion layer, therefore both are correct but not the correct explanation.

About this question

Subject: Physics · Chapter: Electronic Devices · Topic: p-n Junction Diode

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