Chapter 18, Problem 3STP

To determine

To Choose: The correct option.

Answer to Problem 3STP

Option A

Explanation of Solution

Introduction:

Rainbow is a multicolored spectrum of Sun which is formed in the sky just after rain in the direction opposite to that of the Sun.

Reflection is bouncing back of light. Refraction is the bending of light when light enters from one medium to another. Dispersion is the splitting of white light into its constituent colors when it passes through a glass prism.

Diffraction occurs when light bends around the corners of a particle which are the size of the wavelength of light.

When the sunlight falls on the rain droplets suspended in air after rain, the light undergoes reflection, refraction and dispersion. These raid drops act as small prisms.

Conclusion:

Thus, the option A is correct.