Question

What happens if light falls on the mirror normally?

• A. Light will reflect back on its path
• B. Light will reflect at ${30}^o$
• C. Light will reflect at ${60}^o$
• D. Light will reflect at ${10}^o$

Answer 1

Answer: (A)

Light will reflect back on its path

As angle of incidence is ${90}^o$. So by laws of reflection, angle of reflection is also ${90}^o$.

So light will reflect back on its path.

Option $a$ is correct.