Question

g A ray of light is incident on a flat reflecting surface and is reflected. If the incident ray makes an angle of 28.7° with the normal to the reflecting surface, what angle does the reflected ray make with the normal?

Answer 1

Answer:

$\theta_2 = 15.8$degree

Explanation:

given data:

$\theta_1 = 28.7 degree$

accoding to the snell's law

$n_1*sin\theta_1=n_2*sin\theta_2$

where n1 is refracting index of air = 1

n2 is refracting index of glass = 1.55

putting all value to get angle mad by incident ray with normal

$\theta_2 = \frac{1*sin28.7^{o}}{1.55}$

$\theta_2 = 15.8$degree