Question

According to the laws of reflection, the angle of incidence is equal to the angle of reflection.
A) True
B) False

Answer 1

Hint: The laws of reflection consist of two rules that govern the fundamentals of reflection of light whenever light gets reflected from an interface or a surface. These laws of reflection talk about the incident ray, the reflected ray and the angles made by them with the normal to the reflecting surface.

Complete step by step answer:
The laws of reflection are the fundamental laws that govern the behavior of light rays when they get reflected from a surface. There are two laws of reflection –
1) The incident ray, the normal to the surface and the reflected ray, all lie in the same plane.
2) The angle made by the incident ray with the normal to the surface (angle of incidence) is equal to the angle made by the reflected ray with the normal to the reflecting surface (angle of reflection). Hence, the angle of incidence is equal to the angle of reflection.
Therefore, according to the laws of reflection, the angle of incidence is equal to the angle of reflection.

So, the correct answer is “Option A”.

Note: Students can get a feel of the reflection of light by a surface and the fact that the angle of incidence is equal to the angle of reflection by shining a laser torch at a shiny metal surface at an oblique angle. The laser gets reflected at the same oblique angle to the metal surface which the student can observe by clicking a photograph of the path of the laser. This experiment can also be alternately done by throwing a ball at an angle to a wall and observing that the ball gets reflected at the same oblique angle to the wall. Light also behaves in a similar manner to the ball when it gets reflected.