Question

To measure the refractive index of the material of a prism, we have to use

• A. The prism of any angle and light of any wavelength
• B. The prism with angle ${60}^o$ and the white light only
• C. The prism of angle ${60}^o$ and sodium light only
• D. The prism with angle ${60}^o$ and any wavelength light

Answer 1

The correct option is B The prism with angle ${60}^o$ and the white light only

$\begin{array}{c}\text{The prism of angle}{60}^{\circ }\text{and white light should be used}\\ \text{to measure refractive index of material of prism.}\end{array}$