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Assertion : A lens has tow principal foc...

Assertion : A lens has tow principal focal lengths which may differ.
Reason : Light can fall on either surface of the lens. The two principal focal lengths differ when medium on the two sides have different refractive indices

A

If both assertion and reason are true and\ reason is a correct explanation of the assertion

B

If both assertion and reason are true but the reason is not a correct explanation of assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true

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The correct Answer is:
A
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