Question

The speed of light in water is 2.50 x 108 m/sec.
The speed of light in glass is 1.25 x 108m/sec.
Find the refractive index of water with respect to
glass.
O
2
0.5
6/5
O
12/5​

Answer 1

Answer:

In this case, the refractive index of glass with respect to water is given as:

n=

speedoflightinglass(v

2

)

speedoflightinwater(v

1

)

where, the speed of light in water medium v

1

=2.2×10

8

m/s and the speed of light in glass medium v

2

=2×10

8

m/s.

Therefore, n=

2×10

8

m/s

2.2×10

8

m/s

=1.1.

Hence, the refractive index of the transparent medium is 1.1