Question

write speed of light in the following medium air water glass​

Answer 1

Answer:

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

 n=speedoflightinglass(v2)speedoflightinwater(v1)

where, the speed of light in water medium v1=2.2×108m/s and  the speed of light in glass medium v2=2×108m/s.

Therefore, n=2×108m/s2.2×108m/s=1.1.

Hence, the refractive index of the transparent medium is 1.1

Answer 2

Answer:

speed of light in water :225000 km/sec

speed of light in air :299792458 m/s

speed of light in glass: 200000 km/s