AIIMS2009Physics-Semiconductors
AIIMS 2009 Physics Photocells Assertion Reason Question
Type: Assertion Reason-conceptual-Medium-Class 12
Assertion : A photocell is called an electric eye. Reason : When light is incident on some semiconductor its electrical resistance is reduced.
A
Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
B
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C
Assertion is true but Reason is false.
D
Both Assertion and Reason are false.
Correct Answer
Option B
Detailed Explanation
Photo-conductive cell is based on the principle that when light is incident on some semiconductor, its electrical resistance is reduced.
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