According to this law,. From the above figure, we can infer following three things, such as:. A ray of light falls on the point P of the smooth surface of a mirror.
The same ray gets reflected from the point of incident P. After detailed observations, scientists have concluded that the angle of incidence is equal to the angle of reflection. A perpendicular is drawn to point P, which divides both the angles. The normal drawn on the point P of a plane mirror helps to relate the angle of incident ray, and angle of reflected ray. The Angle of Incidence. It is the angle that covers between the normal and the incident ray. It is made when the ray of light touches the surface of the glass bar.
A ray of light is incident on the surface of water as shown in the diagram. State whether the light travels faster in air or water.
Now calculate the angle of refraction of the ray. We know that:. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single entry from a reference work in OR for personal use for details see Privacy Policy and Legal Notice. Oxford Reference. Publications Pages Publications Pages.
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