A) \[4\times {{10}^{6}}Hz\]
B) \[3.2\times {{10}^{7}}Hz\]
C) \[3\times {{10}^{6}}Hz\]
D) \[5\times {{10}^{7}}Hz\]
Correct Answer: B
Solution :
\[\nu '=\nu \left( 1-\frac{v}{c} \right)=4\times {{10}^{7}}\left( 1-\frac{0.2c}{c} \right)=3.2\times {{10}^{7}}Hz\]
You need to login to perform this action.
You will be redirected in
3 sec
