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Cellulose has a refractive index of 1.4613. What is the angle of total internal reflection when...

Cellulose has a refractive index of 1.4613. What is the angle of total internal reflection when a ray of light travels from cellulose into air? Assume refractive index of air is 1. Two decimal places, in degrees

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Answer #1

Note : As in total internal reflection the refracted ray completely passed through incedence medium we can found out angle of refraction by knowing angle of incidence. But in the question angle angle of incidence not provided so I just calculated it by considering that refracted ray just passed the surface of same medium.

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