Question

3) For total internal reflection of light, i = critical angle and r = 90°. If light travels from water (denser medium) to air (rarer medium), state whether the given statement is true or false N The relationship between 102 and critical angle, is 1m = sin i​

Answer 1

Answer:

So for angles of incidence greater than 48.6-degrees, TIR occurs. But 48.6 degrees is the critical angle only for the water-air boundary. The actual value of the critical angle is dependent upon the two materials on either side of the boundary. For the crown glass-air boundary, the critical angle is 41.1 degrees.

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