Question

A given ray of light suffers minimum deviation in an equilateral prism P. If refractive index increases slightly then the ray will now suffer :-

• A. greater deviation
• B. no deviation
• C. same deviation as before
• D. Lesser deviation

Answer 1

The correct option is A greater deviation

$\begin{array}{c}\text{Refractive index is}\\ \text{directly proportional}\\ \text{to deviation i-e}\\ \mu \propto \delta \end{array}$