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Asked by sarveshvibrantacademy | 18 May, 2019, 11:29: AM
Expert Answer
we have mirror equation, (1/v) + (1/u) = 1/f ...............................(1)
where v is image distance, u is object distance and f is focal length of concave mirror
By substituting the values in eqn.(1), we have (1/v)+(1/25) = 1/10 or v = (100/6) cm
magnitude of Magnification = v/u = 100/(6×25) = 2/3
hence diameter of image = (2/3)×3 = 2 mm ; radius of image = 1 mm
area of image = π×12 sq.mm ; hence x = 1
Answered by Thiyagarajan K | 18 May, 2019, 03:39: PM
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