JEE Advanced 2007 Physics question

STATEMENT-1 : The formula connecting u, v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. because STATEMENT-2 : Laws of reflection are strictly valid for plane surfaces, but not for large spherical surfaces.

(A)Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1
(B)Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
(C)Statement-1 is True, Statement-2 is FalseCorrect
(D)Statement-1 is False, Statement-2 is True

Answer: (C)

Solution

Statement-1: the mirror formula is derived for paraxial rays, i.e. for mirrors whose aperture is small compared with the radius of curvature; for large apertures spherical

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Question ID VK-037415