Assertion :Although the surface of goggles' lens is curved, it does not have any optical power. Reason: In case of goggles, both the curved surfaces have equal radii of curvature and have centre 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
Both Assertion and Reason are incorrect
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion We all know that the surfaces of goggles are curved, however, they don't have an optical power of their own. The reason is the perfect explanation of this statement that the curved surfaces have an equal radii of curvature thereby cancelling out each other's effect.