Question

a) is the speed of light constant b) which colour has the greatest speed in the visible region? c) is it possible to combine the seven colours in the spectrum to form white?

Answer 1

A. No.
B. All the colors has the same speed.
C. Yes.

Answer 2

a)according to our textbooks,speed of light is constant.
b)spectrum of light is constant,so all colors travel in same speed.
c)yes,by NEWTON's WHEEL or with an INVERTED PRISM.