OPTICS QUESTION HELP!!
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OPTICS QUESTION HELP!!

[From: ] [author: ] [Date: 12-04-22] [Hit: ]
(c)7.(d)19.A little detail would be great as I cant understand the concept of this question AT ALL.=> s = L/n = 10/1.4 = 7.Answer c).......
The optical path length across the thickness of a transparent slab is 10cm.Its refractive index is 1.4.Thickness of slab is

(a)14cm
(b)10cm
(c)7.14
(d)19.6cm

A little detail would be great as I can't understand the concept of this question AT ALL.

-
L = ns
=> s = L/n = 10/1.4 = 7.14 cm
Answer c).
1
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