Question

A mirror is inclined at an angle of $\theta$ with the horizontal. If a ray of light is incident at an angle $\theta$ as shown, then the angle made by reflected ray with the horizontal is:

• A. Zero
• B. $\frac{\theta }{2}$
• C. $2\theta$
• D. $\theta$

Answer 1

Answer: (A)

$\begin{array}{c}\text{According to principle of reflection}\\ \text{angle of incidence}\text{=angle of reflection}\\ \text{inclined angle}=\theta \\ \text{reflected angle}=\theta \end{array}$

Hence, Correct answer is $D$.