Dispersion of Light — MCQ Practice

White light passes through a prism. Which of the following statements is correct regarding the deviation of different colors?

A prism has a refractive index for violet light $n_V = 1.65$ and for red light $n_R = 1.60$. If the angle of the prism is $5^circ$, what is the angular dispersion produced by the prism?

The dispersive power of a material is $0.04$. If the refractive indices for violet and red light are $1.56$ and $1.50$ respectively, what is the refractive index for yellow (mean) light?

Which of the following conditions is NOT necessary for the dispersion of light to occur?

Two prisms, P1 and P2, are made of different materials. P1 has $n_V = 1.54$, $n_R = 1.50$, and P2 has $n_V = 1.62$, $n_R = 1.58$. Which prism has higher dispersive power?

A prism of angle $A$ produces an angular dispersion $\theta$. If the prism is replaced by another prism of the same material but with an angle $2A$, what will be the new angular dispersion?

Which of the following phenomena is NOT a direct consequence of the dispersion of light?