Refraction through Prism — Prelims Questions

A ray of light passes through an equilateral prism (refracting angle $A = 60^\circ$). If the angle of minimum deviation is $30^\circ$, what is the refractive index of the material of the prism?

For a prism, the angle of incidence $i_1$ and angle of emergence $i_2$ are related to the angle of deviation $\delta$ and angle of prism $A$ by the formula:

A thin prism of angle $4^\circ$ gives a deviation of $2^\circ$. What is the refractive index of the material of the prism?

Which of the following conditions is NOT true for minimum deviation in a prism?

A ray of light is incident on one face of a prism at an angle of $60^\circ$. The angle of the prism is $60^\circ$. The refractive index of the material of the prism is $\sqrt{3}$. The angle of emergence is:

The graph between angle of deviation ($\delta$) and angle of incidence ($i$) for a prism is a curve that: