Question

Please help me .

Q. if the angle of incidence of a Ray of light is 40 degree then what is the angle of reflection ??

correct answer will be marked brainliest​

Answer 1

Answer:

$\large\underline{\boxed{\rm{40 ^{\circ}}}}$

EXPLANATION :

The angle of reflection would be 40° only. As per the second law of reflection, angle of incidence is always equal to angle of reflection. Therefore, we can say that angle of reflection is 40°.

$\mapsto \angle \tt i = \angle \: r \\ \\ \mapsto \underline{ \boxed{ \sf{40^{\circ} = 40^{\circ}}}} \: \red{ \bigstar}$

Therefore, the angle of reflection is 40°.

Knowledge Bytes!

• The bouncing back of light from a polished or a smooth surface is called reflection.

There are two laws of reflection :

1. The incident ray, normal and the reflected ray lies in the same plane.
2. The angle of incidence is always equal to angle of reflection.

• $\pmb\dag$ $\boxed{ \sf{ \angle \: i = \angle \: r}} \:$

Answer 2

Answer:

Answer: If the angle between the incident ray and mirror is 40 degree , then the angle of incidence will be 50 degree. Then the angle of reflection will 50 degree ( angle of incidence = angle of reflection).