Question

A
О a
is
and glass
air
ray of light travels through compound
medium
of
water
а air 3X108 m/s
The nelocity of light in
and
1.33 and that
refractive index of
wort
water
worot waler is 1.12. calculate the nelogcity of light
glass.
of glass​

Answer 1

Answer:

Correct option is

C

2

3

Refractive index of glass is defined as the ratio of the speed of light in vacuum to the speed of light in glass.

Refractive index of glass, n

g

=

Speed of light in glass

Speed of light in vacuum

Therefore, n

g

=

2×10 8/3×10 8

= 3/2