Question

The angle of incidence in the optically denser medium for which the angle of refraction is less dense medium is 90° is known as

a.

denser angle

b.

optical angle

c.

right angle

d.

critical angle

Posted under General Knowledge

Answer: (d).critical angle

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Q. The angle of incidence in the optically denser medium for which the angle of refraction is less dense medium is 90° is known as

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