A ray of light (R 1 ) is incident on a glass slab at an angle equal to critical angle of glass-air system. The refracted ray (R 2 ) undergoes partial reflection and refraction at other surface of slab. The angle between the reflected ray (R 3 ) and refracted ray (R 4 ) is
Text Solution
Verified by ExpertsThe correct answer is:
C
= 30°
= 180° - (30° +45°) = 105°
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