Question

Answer the following question​

Answer 1

Question 1

In which of the above material medium, the speed of light is maximum?

• The speed of light is maximum in the case of ice.
• This is because, the lower the refractive index the faster the light can move $\sf .$
• We see that in the above table Ice has a very low refractive index of about 1.31 which is the least amongst the others

Question 2

In which of the above material medium, the speed of light is minimum?

• The speed of light is Minimum in the case of Diamond.
• Once more stating, More the refractive index the slower the light travels.
• Here as diamond has a very High resistance the light's speed reduces.

Question 3

Arrange the material media in ascending order according to the speed of light in that medium

• Once again using the same principle, lesser the refractive index the Faster light travels and higher the refractive index the slower it gets

On arranging,

→ Diamond

→ Rocksalt

→ Glass

→ Kerosene

→ Water

→ Ice