Assertion: Goggles have zero power.Reason: Ra | vedclass

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(B) Goggles are designed to protect eyes from harmful $UV$ rays and dust, not to correct vision defects. Therefore, they are made with plane glass, wh

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If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

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(B) Goggles are designed to protect eyes from harmful $UV$ rays and dust, not to correct vision defects. Therefore, they are made with plane glass, which has zero power.The reason states that the radius of curvature of both sides of the lens is the same. While this is true for a plano-concave or plano-convex lens (if both sides were flat, the radius is effectively infinite), it does not explain why the power is zero. The power of a lens is given by the lens maker's formula: $P = (n-1)(1/R_1 - 1/R_2)$. For a lens to have zero power, the focal length must be infinite, which occurs when the surfaces are plane $(R_1 = R_2 = \infty)$. The fact that the radii are equal does not necessarily imply they are infinite. Thus, the Reason is a true statement but not the correct explanation for the Assertion.

Assertion: Goggles have zero power.
Reason: Radius of curvature of both sides of the lens is same.

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Assertion: Goggles have zero power.Reason: Radius of curvature of both sides of the lens is same.