Question

Dispersive power of a prism______________ with the increase in prism angle.

• A. Increases
• B. decreases
• C. remains the same
• D. none of these

Answer 1

The correct option is A Increases

$\begin{array}{c}\text{The power of a transparent medium to}\\ \text{separate different colors of light by}\\ \text{refraction as measured by the difference}\\ \text{in refractivity for two specified widely}\\ \text{differing wavelengths divided by the refractivity}\\ \text{at some specified intermediate wavelength.}\\ \text{Dispersive power of a prism increases with}\\ \text{increase in prism angle.}\\ \text{So option}A\text{is correct.}\end{array}$