AIIMS2008Physics-Optics
AIIMS 2008 Physics Lenses MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A converging lens forms a real image of an object on its principal axis. A rectangular slab of refractive index μ and thickness x is introduced between I and the lens, I will move
A
towards the lens (μ - 1)x
B
towards the lens by (1 - 1/μ)x
C
away from the lens by (μ - 1)x
D
away from the lens by (1 - 1/μ)x
Correct Answer
Option D
Detailed Explanation
Due to insertion of slab, the optical path increases by x/μ1, where x is thickness of slab.
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