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

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Solution

Dear Student ,
Here in this case the angle of incidence is equal to the angle of reflection and
hence the angle of reflection is = 90⁰ - 20⁰ = 70⁰ .
So the angle between the reflected ray and the incident ray is = 70⁰ + 70⁰= 140 ⁰ .
Regards

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

Dear Student , Here in this case the angle of incidence is equal to the angle of reflection and hence the angle of reflection is = 900 - 200 = 700 . So the angle between the reflected ray and the incident ray is = 700 + 700 = 140 0 . Regards

Dear Student ,
Here in this case the angle of incidence is equal to the angle of reflection and
hence the angle of reflection is = 90⁰ - 20⁰ = 70⁰ .
So the angle between the reflected ray and the incident ray is = 70⁰ + 70⁰= 140 ⁰ .
Regards