A) \[\text{1}.\text{5}\times \text{1}{{0}^{\text{8}}}\text{ m}/\text{s}\]
B) \[\text{2}\times \text{l}{{0}^{\text{8}}}\text{ m}/\text{s}\]
C) \[\text{3}\times \text{l}{{0}^{\text{8}}}\text{m}/\text{s}\]
D) \[\text{5}\times \text{l}{{0}^{\text{8}}}\text{m}/\text{s}\]
Correct Answer: A
Solution :
The critical angle is the angle of incidence in the denser medium for which the angle of refraction in the rarer medium is \[{{90}^{o}}\].You need to login to perform this action.
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