Question

What will happen if a ray of light is thrown on the mirror along its normal
Ans, when the incident ray falls on the plane mirror along the normal we are unable to see the reflected ray as ___ of the incident ray, reflected ray, and normal is the same. In such a case angle i = angle r

Answer 1

When, a ray is incident along normal to a mirror, angle of incidence i=0

o

And according of Law of Reflection, angle of reflection, r=i=0

o

And, angle of incidence and reflection are angles from normal.

Hence, reflected ray is also along normal that is ray is reflected along the same path.

Answer-(C)

Answer 2

卄乇ㄚ 爪卂ㄒ乇 ♥️

$\huge\tt\colorbox{lime}{AnsweR}$

If light is incident on the mirror along the normal then the angle of reflection and angle of incidence will be same and they will be equal to zero degree . Hence the light ray will retrace its own path .

yes, your answer is correct xD

Hope it helps u ☄️