Question

# Assertion :Although the surfaces of goggle lenses are curved, it does not have any power. Reason: In case of goggle, both the curved surfaces have equal radii of curvature and have center of curvature on the same side.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Assertion is incorrect but Reason is correct
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Solution

## The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionPower of a lens is given by the lens maker formula-P=(μ−1)(1R1−1R2)For a goggle, R1=R2.Hence power=0

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