A plane mirror receives a laser beam that travels horizontally toward it

PHYSICS · Subjective · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

A plane mirror receives a laser beam that travels horizontally toward it. After reflection, the beam must travel at an angle of

25^{\circ}

above the horizontal. At what angle, measured from the horizontal, should the mirror’s surface be set?