compatidakjjn

2023-02-23

When light enters from air to glass the angle of incidence and refraction in air and glass are 45° and 30° respectively. Find the refractive index of glass.

Hayden Drake

GIVEN ,
angle of incident= 45
angle of refraction = 30
$\text{Refractive index}=\frac{\mathrm{sin}i}{\mathrm{sin}r}\phantom{\rule{0ex}{0ex}}=\frac{\mathrm{sin}45}{\mathrm{sin}30}\phantom{\rule{0ex}{0ex}}=\frac{\frac{1}{\sqrt{2}}}{\frac{1}{2}}\phantom{\rule{0ex}{0ex}}=\frac{2}{\sqrt{2}}\phantom{\rule{0ex}{0ex}}=\sqrt{2}$

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