Apparent depth =RefractiveindexRealdepthfromsurface
d=(d1+d2)μ
=1.5(5+3)=12cm
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…
NEET UG 2016 — Physics Optics
2016mcqeasy
An air bubble in a glass slab with refractive index 1.5 (near-normal incidence) is 5cm deep when viewed from one surface and 3cm deep when viewed from the opposite face. The thickness (in cm) of the slab is
Official previous-year question
Held on 30 Apr 2016 · Verified 9 Jul 2026.
Options
- A
8
- B
10
- C
12
- D
16
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