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Critical angle is minimum when a light ray passes from

Critical angle will be maximum, when light travels from

The critical angle will be maximum when light travels from ________ .

The critical angle is maximum when light travels from

A ray of light from a sodium lamp undergoes total internal reflection.The critical angle will be smallest,when it travels from

A refractive indices of glycerine and water are 1.46 and 1.33 respectively. What is the critical angle when the ray passes from gycerine to water ?

The refractive indices of glycerine and water are 1.46 and 1.33 repectively. What is the critical angle when the ray passes from glycerine to water ?