A ray of light passes from air into glass with an angle of incidence of $60^\circ$ and an angle of refraction of $30^\circ$. Find the refractive index of the glass.

Question

Accepted Answer

$1.73$. $n = \dfrac{\sin i}{\sin r} = \dfrac{\sin 60^\circ}{\sin 30^\circ} = \dfrac{0.866}{0.5} = 1.73$ ($\sqrt{3}$). Dividing the angles themselves gives 2, and inverting gives 0.58.

Answer

A) $2$

Answer

B) $0.58$

Answer

C) $1.73$

Answer

D) $1.5$

A ray of light passes from air into glass with an angle of incidence of $60^\circ$ and an angle of refraction of $30^\circ$. Find the refractive index of the glass.

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