Question

Transverse nature of light was confirmed by the phenomenon of the
A. Refraction of light
B. Diffraction of light
C. Dispersion of light
D. Polarization of light

Answer 1

Hint: Transverse waves are the waves whose vibration is perpendicular to the direction of propagation of waves. Light is a transverse wave. This means the vibrating electric field is perpendicular to the direction of propagation of light. However, in case of ordinary light, the electric field is in all directions. This light is called unpolarized light. A polarized light has a vibrating electric field in a specific direction. If the light can be polarized then it will be proved that light is a transverse wave.

Complete solution:
There are two types of waves namely, Longitudinal waves and Transverse waves. If the vibrations and propagation of waves are in the same direction then that wave is called longitudinal wave. If the vibrations and propagation of waves are perpendicular to each other then that wave is called transverse wave.

Light has both a vibrating electric field and a vibrating magnetic field. The plane of vibrations in an electric field is perpendicular to the direction of the propagation of the light wave. Hence, light is a transverse wave.
Light can be either polarized or unpolarized. The light is polarized when the vibration of an electric field in a specific direction. The light is unpolarized when the vibration of the electric field is not in a specific direction.
An unpolarized light can be polarized. When an unpolarized light is passed through a polarizer, light gets polarized. Polarizer has the plane of transmission in a specific direction. So, when the unpolarized light is passed through a polarizer, the transmitted light has the plane of electric field in a specific direction. This makes the light polarized.
Thus, the transverse nature of light was confirmed by the phenomenon of the polarization of light.

So, the correct answer is option D i.e. polarization of light.

Note:
To answer this question, students should know clearly about the other phenomenon as well as. Refraction of light is the phenomenon of bending of light when the light passes from one medium to another. Diffraction of light is the phenomenon of bending of light around the corners of an obstacle. Dispersion of light is the phenomenon of splitting of light into spectrum of colors when it is passed through a glass prism.