Question

A ray of light strikes a plane mirror such that the angle of the mirror is 20. What is the value of the angle of reflection ? What is the angle between the incident ray and the reflected ray?​

Answer 1

Answer:

angle of reflection is also 20

angle between incident and reflected ray is 40

Explanation:

• because by the law of reflection """""angle of incident =angle of reflection"""""

Answer 2

Answer:

Angle of reflection = 20°

Angle between the incident ray and the reflected ray = 140°

Explanation:

Angle of the mirror is also known as Angle of incidence

• Law of reflection

Angle of incidence = Angle of reflection

Angle of reflection = 20°

Angle between the incident ray and the reflected ray = 180° - (Angle of incidence + Angle of reflection)

= 180° - (20° + 20°)

= 180° - (40°)

Angle between the incident ray and the reflected ray = 140°