Given below are two statements : one is labelled as Assertion A a… - Vidyadip

MCQ

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 statement, choose the correct answer from the options given below :

A
$A$ is false but $R$ is true
✓
Both $A$ and $R$ are true but $R$ is NOT the correct explanation of $A$
C
$A$ is true but $R$ is false
D
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$

✓

Answer

Correct option: B.

Both $A$ and $R$ are true but $R$ is NOT the correct explanation of $A$

b
Photodiodes are operated in reverse bias as fractional change in current due to light is more easy to detect in reverse bias.

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