Define critical angle. State two conditions of total internal reflecti

1.	Define critical angle. State two conditions of total internal reflection of light ?
Answer» Critical angle— The angle of incidence corresponding to which angle of refraction becomes 90º is called critical angle. Following are the two conditions of total internal reflection of light— 1. The light should travel from denser to rarer medium. 2. The angle of incidence must be greater than the critical angle for the given pair of media.

Define critical angle. State two conditions of total internal reflection of light ?

Answer»

Critical angle—

The angle of incidence corresponding to which angle of refraction becomes 90º is called critical angle.

Following are the two conditions of total internal reflection of light—

1. The light should travel from denser to rarer medium.

2. The angle of incidence must be greater than the critical angle for the given pair of media.

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Define critical angle. State two conditions of total internal reflection of light ?

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