Question

Ques. 4) What is reflection of light?Draw the diagram explaining first law of reflection
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Answer 1

Answer:

The bouncing back of light in the same medium of the striking to the surface is called ‘reflection of light’.

There are total three laws of reflection.

First law of reflection:

The first law of reflection states that the angle between the incident ray and the normal is equal to the angle between the reflected ray and the normal.

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Others law of reflection:

Second law of reflection:

The incident ray, the normal and the reflected ray are all in the same plane.

Third law of reflection:

The incident ray and refracted ray are on different sides of the normal.

Answer 2

Answer:

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves.