Скачать или смотреть Science Experiment | Physics | Reflection From a Plane Mirror | First Law of reflection

Hello Guys,
Our topic for today is Laws of Reflection of light.
See how you can so simply make a project to show the First Law of Reflection...
Consider this ray of light that strikes a mirror.
This ray of light is called the incident ray.
Fix a white sheet of paper on a drawing board or a table. Take a comb and close all its openings except one in the middle. You can use a strip of black paper for this purpose. Hold the comb perpendicular to the sheet of paper. Throw light from a torch through the opening of the comb from one side. With a slight adjustment of the torch and the comb, you will see a ray of light along with the paper on the other side of the comb. Keep the comb and the torch steady. Place a strip of the plane mirror in the path of the light ray.

After striking the mirror, the ray of light is reflected in another direction. The light ray, which strikes any surface, is called the incident ray. The ray that comes back from the surface after reflection is known as the reflected ray.

A ray of light is an idealization. In reality, we have a narrow beam of light that is made up of several rays. For simplicity, we use the term ray for a narrow beam of light.

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