A) \[1.96\times {{10}^{8}}\] m/s
B) \[2.12\times {{10}^{8}}\] \[m/s\]
C) \[3.18\times {{10}^{8}}\]\[m/s\]
D) \[3.33\times {{18}^{8}}\]\[m/s\]
Correct Answer: B
Solution :
\[\mu =\frac{c}{v}=\frac{\sin i}{\sin r}=\frac{\sin {{45}^{o}}}{\sin {{30}^{o}}}\] \[\Rightarrow \] \[v=\frac{3\times {{10}^{8}}}{\sqrt{2}}=2.12\times {{10}^{8}}\]\[m/s\]You need to login to perform this action.
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