Question

State whether true or false:

During dispersion the violet colour suffers the maximum refraction.

• A. True
• B. False

Answer 1

The correct option is A True

White light is made of seven color band (VIBGYOR), such that the white light is incident on the refracting face of the prism each colored ray deviates through different angle, depending upon its wavelength. The red rays deviate least, whereas the violet rays deviate most. It is this differential deviation of rays, which causes dispersion. During dispersion of light, the maximum dispersed or refracted is violet color. Hence, the statement is true.
Dispersion of white light is shown below.