Question

Law of reflection states that when a light ray is incident on a reflecting surface then angle of incidence (i) = Angle of reflection (r). If incident ray is given by $[\frac{\hat{i}}{2}+\frac{\sqrt{3}}{2}\hat{j}]$ & reflected ray is given by $[\frac{\hat{i}}{2}-\frac{\sqrt{3}}{2}\hat{j}],$ then angle of incidence is :-

• A. ${30}^o$
• B. ${45}^o$
• C. ${60}^o$
• D. ${120}^o$

Answer 1

The correct option is A ${30}^o$

option A is correct