Question

A ray of light passes from air to glass n= 1.5 at an angle of 30 degree find angle of refraction

Answer 1

according to me this is the answer
plz correct me if wrong
comment if correct

Answer 2

Answer:

The angle of refraction is sin⁻¹(1/3).

Explanation:

We will solve this question through the concept of snell's law. Which is given as,

$\mu_1 sin\theta_1=\mu_2sin\theta_2$        (1)

Where,

μ₁=the refractive index of the medium in which the source light is present

μ₂=the refractive index of the medium  which the source of light has to cross

θ₁=angle of incidence

θ₂=angle of refraction

From question,

μ₁=1       (the source of light is present in air)

μ₂=1.5

θ₁=30°

By placing these values in equation (1) we get;

$1\times sin 30\textdegree=1.5\times sin\theta_2$

$sin\theta_2=\frac{1}{3}$

$\theta_2=sin^-^1\frac{1}{3}$

Hence, the angle of refraction is sin⁻¹(1/3).