Question:
A student wants to have third colour from the top corresponds to the colour of the sky after the dispersion of white light through a glass prism. He placed
prism ABC with BC as base as shown in figures P, Q, R and S. Which position of the prism is correct ?
(a) P
(b) Q
(c) R
(d) S.
Solution:
(b).
Explanation : Colour of sky is blue.