PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
Two plane mirrors are inclined at 70∘. A ray is incident on one mirror at an angle of incidence θ. After reflection, it falls on the second mirror and is reflected from there parallel to the first mirror. The value of θ is
(1) 50∘
(2) 45∘
(3) 30∘
(4) 25∘