Question

Are the laws of reflection applicable to-

(a) Plane mirrors only

(b) Spherical mirrors only

(c) Both plane and spherical mirrors

(d) Depends upon the roughness of mirror​

Answer 1

Important points :-

☆ Laws of reflection are valid for all types of surfaces like plane, spherical, rough or smooth.

☆ Laws of reflection are valid for both regular and irregular reflection.

Answer :-

(a) and (b) are wrong because laws of reflection are valid for both plane and spherical mirrors.

(d) is wrong because because it is applicable for all types of surfaces.

So, the correct option is (c)

Additional information :-

Laws of reflection :-

i) Incident ray, normal amd reflected ray lie in the same plane.

ii) Angle is incidence is always equal to angle of reflection.

∠i = ∠r

Regular reflection :- If parallel light rays strikes to mirror and after reflection, rays move in specific direction and remains parallel, than this type of reflection is called regular reflection.

Irregular reflection :- If parallel light rays strikes to rough surface and after reflection, rays move in all possible direction and do not remains parallel, than this type of reflection is called irregular reflection.

Answer 2

Answer:

Required Answer :–

Option C ☑️

Know More :–

So,

According to the Question we have to choose the correct option. The law of reflection states that the angle of the incidence = angle of refraction. So,

In a plane mirror it will be the same because it is plane and no roughness. And the Spherical mirror because the shape of mirror doesn't matter. So,

Option C is correct.