Question

state the laws of reflection?​

Answer 1

The law of reflection states that the angle of reflection equals the angle of incidence—θr = θi. The angles are measured relative to the perpendicular to the surface at the point where the ray strikes the surface.

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Answer 2

$\huge\bf\underline\red{ANSWER↧}$

1.The angle between the incident ray and the normal is equal to the angle between the reflected ray and the normal.

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

3. Incident ray and refracted ray are on different sides of the normal.

Explanation:-

law-1:-

The angle between the incident ray and the normal is equal to the angle between the reflected ray and the normal.

$\sf\underline{This \: means \: that \: θi \: equals \: θr}$

where

$\sf{θi=angle \: of \: incidence}$

$\sf{θr=angle \: of \: reflection}$

As the angle of incidence (θi) increases, the angle of reflection (θr) also increases and they are always equal to each other.

law-2:-

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

θi=θr

Changing the direction of the incident ray changes the angle of the plane.

θi=θr

Again the incident ray, the normal line and the reflected ray all lie in the same plane.

law-3:-

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

The incident ray and the reflected ray can not be on the same side of the normal.

The incident ray and reflected ray must be on different sides of the normal.

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