Question

If the angle of incidence is ${50}^o$, then calculate the angle between the incidence ray and the reflected ray-

• A. ${80}^o$
• B. ${60}^o$
• C. ${100}^o$
• D. ${70}^o$

Answer 1

Answer: (C)

${100}^o$

From the laws of reflection, we know that

$\angle i=\angle r$

Given,

$\angle i={50}^{\circ }$

$\therefore \angle r={50}^{\circ }$

The angle between incident ray and the reflected ray is given as

$\angle i+\angle r=50+50={100}^{\circ }$

Hence, the correct answer is OPTION C.