Question

A ray of light is incident on a glass sphere of refractive index
$\sqrt{3}$ at an angle of ${60}^{\circ }$ as shown in the figure. The angle by which it is deviated as it comes off sphere is

• A. ${30}^{\circ }$
• B. ${45}^{\circ }$
• C. ${60}^{\circ }$
• D. ${90}^{\circ }$

Answer 1

The correct option is C ${60}^{\circ }$

${\delta }_1=60-{30}^{\circ }=30\downarrow {\delta }_2={60}^{\circ }-{30}^{\circ }=30\downarrow \therefore {\delta }_{net}={\delta }_1+{\delta }_2={60}^{\circ }\downarrow$