A) \[3\times {{10}^{7}}\]
B) \[2\times {{10}^{-25}}\]
C) \[5\times {{10}^{-18}}\]
D) \[4\times {{10}^{1}}\]
Correct Answer: D
Solution :
\[\lambda =\frac{c}{v}=\frac{3\times {{10}^{8}}}{8\times {{10}^{15}}}=3.75\times {{10}^{-8}}\] \[=3.75\times {{10}^{-8}}\times {{10}^{9}}nm\]\[=4\times {{10}^{1}}nm\].You need to login to perform this action.
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