Question

The laws of reflection hold good for

• A. plane mirror only
• B. concave mirror only
• C. convex mirror only
• D. all mirrors irrespective of their shape

Answer 1

The correct option is D

all mirrors irrespective of their shape

Laws of reflection

The laws of reflection determine the reflection of incident light rays on reflecting surfaces, like mirrors, smooth metal surfaces, and clear water.

Following are the laws of reflection:

1. The incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane.
2. The angle of incidence is equal to the angle of reflection.

Explanation of Correct Option:

1. From the figure, it is clear that the incident ray, reflected ray, and the normal, all lie in the same plane and the angle of incidence is equal to the angle of reflection in all three cases.
2. The laws of reflection apply to all reflecting surfaces, regardless of whether they are plane or curved.
3. Therefore laws of reflection hold good for convex, concave, and plane mirrors.

Option D is correct

Explanation of incorrect Options:

Since all the three laws hold for all the three mirrors.

We can't say plane mirror only,

so Option A is incorrect.

We can't say concave mirror only,

Option B is incorrect.

We can't say convex mirror only,

Option C is incorrect.