A) \[3\times {{10}^{5}}m/s\]
B) \[3\times {{10}^{6}}m/s\]
C) \[3.7\times {{10}^{7}}m/s\]
D) \[3.7\times {{10}^{6}}m/s\]
Correct Answer: B
Solution :
\[\Delta \lambda =\lambda \frac{v}{c}\] \[\Rightarrow (3737-3700)=3700\times \frac{v}{3\times {{10}^{8}}}\Rightarrow v=3\times {{10}^{6}}m/s\]
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