A) \[56.4{}^\circ \]
B) \[66.4{}^\circ \]
C) \[46.4{}^\circ \]
D) \[36.4{}^\circ \]
Correct Answer: A
Solution :
Using the relation, \[\sin \,C=\frac{{{\mu }_{r}}}{{{\mu }_{d}}}=\frac{\frac{c}{{{\upsilon }_{r}}}}{c/{{\upsilon }_{d}}}=\frac{{{\upsilon }_{d}}}{{{\upsilon }_{r}}}\] \[\sin \,C=\frac{velocity\text{ }in\text{ }denser\text{ }medium}{velocity\text{ }in\text{ }rarer\text{ }medium}\] \[\sin \,C=\frac{2\times {{10}^{8}}}{2.4\times {{10}^{8}}}=\frac{5}{6}\] or \[C={{\sin }^{-1}}\,\frac{5}{6}\,={{56.4}^{o}}\]
You need to login to perform this action.
You will be redirected in
3 sec
