AIIMS2009Physics-Optics

AIIMS 2009 Physics Mirrors MCQ Question

Type: MCQ-conceptual-Medium-Class 12

In a concave mirror, an object is placed at a distance d₁ from the focus and the image is formed at a distance d₂ from the focus. Then the focal length of the mirror is

A

√(d₁d₂)

B

d₁d₂

C

(d₁ + d₂)/2

D

√(d₁/d₂)

Correct Answer

Option A

Detailed Explanation

Using 1/v + 1/u = 1/f

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