Question

The angle between an incident ray and the mirror is 35⁰.
(i) What is the angle of incidence?
(ii) What is the angle of reflection?
(iii) What is the total angle turned by the ray of light?
(iv) What is the angle between the incident and the reflected rays?

Answer 1

Given, angle between incident ray and mirror = 35^o
(a). Angle of incidence = angle of mirror to the normal - angle between incident ray and mirror = 90 - 35 = 55^o
(b). Angle of reflection = angle of incidence = 55^o
(c). Total angle turned = angle of incidence + angle of reflection = 55 + 55 = 110^o
(d). The angle between incident ray and reflected ray = Angle of incidence + Angle of reflection = 55 + 55 = 110^o