A) \[6.544\times {{10}^{-4}}cm\]
B) \[6.544\times {{10}^{-4}}m\]
C) \[6.54\times {{10}^{-4}}cm\]
D) \[6.5\times {{10}^{-4}}cm\]
Correct Answer: A
Solution :
\[{{X}_{0}}=\frac{\beta }{\lambda }(\mu -1)t\] \[\Rightarrow 5\beta =\frac{\beta (0.45)t}{5890\times {{10}^{-10}}}\] \[\therefore \,t=\frac{5\times 5890\times {{10}^{-10}}}{0.45}=6.544\times {{10}^{-4}}\,\,cm\]You need to login to perform this action.
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