Question

Choose the correct answer from alternatives given.
The phenomena involved in the reflection of radio waves by ionosphere is similar to

• A. reflection of light by a plane mirror.
• B. total internal reflection of light in air during a mirage.
• C. dispersion of light by water molecules during the formation of a rainbow.
• D. scattering of light by the particles of air.

Answer 1

The correct option is C dispersion of light by water molecules during the formation of a rainbow.

The phenomenon involved in the reflection of radiowaves by ionosphere is similar to total internal reflection of light in air during a mirage (angle of incidence gt critical angle). It is same as the formation of the rainbow because it also involves the process of total internal reflection.

Choice $\left(b\right)$ is correct.