define light. reflection of light and refraction of light also
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Reflection can simply be defined as the reflection of light when it strikes the medium on a plane. Refraction can be defined as the process of the shift of light when it passes through a medium leading to the bending of light. The light entering the medium returns to the same direction.
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Question : Define reflection ...of light
Define refraction... of light
➡️ Reflection of light ⤵️
The phenomenon of bouncing back of light into the same medium by the smooth surface is called reflection
➡️ Example of reflection of light⤵️
•Twinkling of stars or light
Reflected by a mirror.
➡️Laws of Reflection of light ⤵️
a. The angle of incidence is equal to the angle of reflection.
b. The incident ray, the normal and the reflected ray, all lie in the same plane.
➡️There are two types of reflection :⤵️
a. Specular/ Regular reflection
b. Diffused/ Irregular reflection
➡️ Refraction of light ⤵️
The phenomenon of change in the direction of light when it passes from one transparent medium to another is called refraction.
➡️Laws of Refraction of Light⤵️
➡️The incident ray refracted ray, nd the normal to the interface of two media at the point of incidence all lie on the same plane.
➡️The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant. This is also known as Snell’s law of refraction.
This law is also known as Snell 's law of refraction .
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