White light is incident on one of the refracting surfaces of a prism of angle $5^\circ $. If the refractive indices for red and blue colours are ${\rm{1}}{\rm{.641}}$ and ${\rm{1}}{\rm{.659}}$ respectively, the angular separation between these two colours when they emerge out of the prism is

JEE PHYSICS MCQ: RAY OPTICS

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White light is incident on one of the refracting surfaces of a prism of angle

5^\circ

. If the refractive indices for red and blue colours are

\mathrm{1}\mathrm{.641}

and

\mathrm{1}\mathrm{.659}

respectively, the angular separation between these two colours when they emerge out of the prism is

View answer and explanation

Correct option: B

0.09^\circ

Option B (

0.09^\circ

) is correct because the angular separation is the product of the prism's angle and the difference in refractive indices.