The speed of light in certain transparent is two fifth of its speed in air the index of refraction is?

Question

2524 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-07-16T18:41:45

The refractive index is #=2.5#

The refractive index is

#" refractive index "= "speed of light "/"speed of light in the medium"#

#n=c/v#

It is given

#v=2/5c#

Therefore,

#n=c/(2/5c)=5/2=2.5#