(A) : Although the surfaces of a goggle lens are
curved, it does not have any power.
(R) : In case of goggles, both the curved surfaces
have equal radii of curvature.

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'A' is true and 'R' is false

Both 'A' and ‘R’ are false

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

answer is A.

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Detailed Solution

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.

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