What is an optical medium ? Explain the types in it with two examples based on the amount of light they allow through them.

Explanation

Optical medium : The material through which light exhibits its different phenomena is called optical medium . There are three different kind of optical mediums based on the passage of light. They are
(a) Transparent medium
(b) Translucent medium
(c) Opague medium.
(a) Transparent medium : The medium that allows light to pass through is called transparent medium.
Examples: Air, glass, pure water.
(b) Translucent medium : The medium through which light rays can pass partially is called translucent medium.
Examples: Fog, ground glass.
(c) Opaque medium : The medium through which light rays cannot pass at all is calle opaque medium.
Examples : Metal , wood.