Question

(3)
A ray of light makes an angle of 50° with the surface S, of
the glass slab. Its angle of incidence will be
(a) 50°
(6) 40°
(c) 140°
(d) 0°
P.T.O.
​

Answer 1

40

Angle of incidence is made with normal is 40

Angle between Surface and normal is 90

Answer 2

Answer:

a)50

Explanation:

Hey there,

Since according to the law, angle of incidence is equal to angel of reflection. therefore A ray of light makes an angle of 50° with the surface S, of

the glass slab. Its angle of incidence will be 50 degree as per the rule.

Angle of incidence is the angle through which a ray of light falls on an object whereas angle of reflect is the angle through which that ray of light reflects from the surface of that same object.

I hope the answer was helpful.

Thanks.