Question

Light is incident on a flat surface, making an angle of 10 degree with that surface, as shown in the figure then what will be the angle of reflection?

Answer 1

Answer:

If the light makes an angle of 10o with the surface, it makes an angle of 80o with the normal to the surface. Thus the angle of incidence is 80o. According to the law of reflection, the angle of reflection equals the angle of incidence. So the angle of reflection (measured to the normal) is 80o.

Answer 2

Answer:

Angle of Incidence = 80o

So, Angle of Reflection = 80o

Explanation:

Angle of Incidence is the same as Angle of Reflection  

Or Angle of Incidence = Angle of Reflection as a reflection is always same

So, your answer will be 80o