Question

What is the angle between the incident ray and the reflected ray in the given figure(all measurements are in degrees)

• A. 30
• B. 60
• C. 90
• D. 120

Answer 1

The correct option is B

60

The angle between the normal ray and the mirror is ${90}^{\circ }$, we are given the angle between the incident ray and the mirror i.e. ${60}^{\circ }$. So, the angle between the incident ray and the normal is ${90}^{\circ }-{60}^{\circ }={30}^{\circ }$. From laws of reflection, the angle between the reflected ray and the normal would also be ${30}^{\circ }$. So, the angle between incident and reflected ray would be ${60}^{\circ }$.