Question

light is focused on the compound wall of the building with help of a vertical plane mirror.A small boy came and rotate the plane mirror with an angle of 30 degree clock wise then then what happen to the incident beam options are 1)remains fixed, 2)rotates with 15 degree 3)rotates with 60 degree 4) rotates with 90 degree

Answer 1

Answer:

light is foreign complete well of the green plant maja with an angle of 30 degree clock form 15 days with 1960 boys dance

Answer 2

Answer:

The incident beam rotates with 60°.

Explanation:

• A light is an electromagnetic radiation that will be used as detection for the eye of the human.
• The electromagnetic radiation will occur for over the wide range of the wavelength of a gamma rays of wavelength which is less than $1* 10^{-11}$ meters upto radio waves.

There are four types of light waves. They are:

1) Radio waves

2) Micro waves

3) Visible light

4) Gamma rays

• A plane mirror has a reflective surface. It occurs that when light strikes the plane mirror it will form an angle of reflection which is equal to angle of incidence.
• The angle between the ray of incident and normal surface is called the angle of the incidence.

Given that:

A light is seen to be focused on the compound wall of the building with help of a vertical plane mirror.

A small boy rotated the plane mirror with angle of 30° in a clockwise direction.

To find:

What has happened to the incident beam =?

Solution:

Let the angle rotated by the plane mirror be,

θ = 30°

Therefore,

The angle of rotation of a refracted ray is:

2 * θ

= 2*30°

=60°

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