ICSE Class 10 Answered
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Asked by sgs040276 | 02 Jul, 2018, 07:23: PM
Expert Answer
Ray OA incident normally on the boundary of water-air. Hence there is no refraction and no deviation.
Angle of incidence for ray OB is 38° which is less than critical angle, hence only refraction.
The angle of refraction is obtained from the definition of refractive index
Angle of incidence of ray OC is 50º, greater than critical angle, hence total internal reflection is taking place
Answered by Thiyagarajan K | 03 Jul, 2018, 03:24: PM
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