A) 6480 km/s
B) 3240 km/s
C) 4240 km/sec
D) None of these
Correct Answer: A
Solution :
\[\frac{\Delta \lambda }{\lambda }=\frac{v}{c}\]Þ \[\frac{(401.8-393.3)}{393.3}=\frac{v}{3\times {{10}^{8}}}\] Þ v = 6.48 ´106 m/s = 6480 km/sec.You need to login to perform this action.
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