A) \[2\times {{10}^{-4}}m\]
B) \[6\times {{10}^{-3}}m\]
C) \[2\times {{10}^{-3}}m\]
D) \[4\times {{10}^{-4}}m\]
Correct Answer: D
Solution :
\[\lambda =\frac{v}{n}=\frac{1.7\times {{10}^{3}}}{4.2\times {{10}^{6}}}=0.4\times {{10}^{-3}}\] \[=4\times {{10}^{-4}}m\]You need to login to perform this action.
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