Question

An air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness (in cm) of the slab is
(1) 8
(2) 10
(3) 12
(4) 16

Answer 1

Answer:

12 cm

Explanation:

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