Question

 If the angle between the plane mirror and the incident ray is 40°, what are the angles of incidence and reflection?​

Answer 1

Answer:

Given that the angle between incident ray and mirror = 40°  

i. Angle of incidence = 90° - Angle between incident ray and mirror = 90 - 45 = 50°

ii. Angle of reflection = Angle of incidence = 50°

iii. Total angle turned = Angle of incidence + Angle of reflection

= 50° + 50° = 100°

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Explanation:

Answer 2

heya,

given that the angle between plane mirror and incident ray= 40°

angle of incidence= 90° -angle between incident ray and mirror 90° -45° = 50°

angle of reflection= angle of incidence= 50°

total angle turned= angle of reflection + angle of incidence

50° +50° = 100