Exercise

A prism $ABC$ (with $BC$ as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in figure. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky?

Deviation in the path of a ray of light can be produced by a glass prism as well as a rectangular glass slab.

Fill in the blank with the correct option given in the bracket.

_____ (Cornea/Retina) is a transparent avascular tissue that protects the eye.

The far point of a myopic person is $80 \mathrm{cm}$ in front of the eye. The power of the lens required to correct the problem is $-X \mathrm{dioptre}$. The value of $X$ is
Choose From: $\left(2.25, 1.25, 4.00\right)$

What is the least distance of distinct vision for a normal eye?  (choose from: $25 \mathrm{cm}$, $25 \mathrm{m}$, $25 \mathrm{mm}$)

Name the part of eye that can modify the curvature of eye lens. (Retina, Optic Nerve, Ciliary Muscles)

Which of the following phenomena is based on atmospheric refraction?

The angle through which the incident ray is deviated by the prism is called the angle of deviation.