A boy uses blue colour of light to find the refractive index of glass. He then repeats the experimentusing red colour of light. Will the refractive index be the same or different in the two cases? Givea reason to support your answer.

A boy uses blue colour of light to find the refractive index of glass.

1.	A boy uses blue colour of light to find the refractive index of glass. He then repeats the experimentusing red colour of light. Will the refractive index be the same or different in the two cases? Givea reason to support your answer.
Answer» ANSWER :The refractive index will be different. Reason: The SPEED of blue light in glass is LESS than that of RED light and refractive index of glass is `mu=(c)/("speed of light in glass")." "therefore mu_("blue") gt mu_("red")`.