Question

today your mother bought a diamond ring. you found the refractive index of diamond as 2•4 written on the box.what do you mean by this?​

Answer 1

Answer:

Given, refractive index of diamond

μ

d

=2.42

We know, the refractive index of a medium is the ratio of speed of light in vacuum to the speed of light in that medium.

μ=

v

c

=

Speed of light in medium

Speed of light in vacuum

⇒v

d

=

μ

d

c

=

2.42

c

⇒ Speed of light in diamond is lower by a factor 2.42 relative to that in vacuum.