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JEE Main Physics Class 12 Electronic Devices Part 2 Questions
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Question : 34
Total: 111
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 :
[24-Jan-2023 Shift 1]
A
is false but
R
is true
Both
A
and
R
are true but
R
is NOT the correct explanation of
A
A
is true but
R
is false
Both
A
and
R
are true and
R
is the correct explanation of
A
Validate
Solution:
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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