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QNEET-2016-Ph-1149: NEET 2016 Physics - Class 12 NEET-2016-Ph-1149 Solution: An air bubble in a glass slab with refractive index 1.5 (near…
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 8 10 12 16
Multiple Choice Options
- A 8
- B 10
- C 12
- D 16
Step-by-Step Verified Solution
Seeing from one end, h 1 = _ _ (h � b) = 3/2 _ 5 = 15/2 cm
From other end of the slab, h 2 = _ _ h = 3/2 _ 3 = 9/2 cm
Now total height, (15/2 + 9/2) = 24/2 = 12 cm