A) \[6.5\times {{10}^{6}}{{m}^{2}}{{V}^{-1}}{{s}^{-1}}\]
B) \[2.5\times {{10}^{6}}{{m}^{2}}{{V}^{-1}}{{s}^{-1}}\]
C) \[2.5\times {{10}^{4}}{{m}^{2}}{{V}^{-1}}{{s}^{-1}}\]
D) \[6.5\times {{10}^{4}}{{m}^{2}}{{V}^{-1}}{{s}^{-1}}\]
Correct Answer: B
Solution :
(b) \[2.5\times {{10}^{6}}{{m}^{2}}{{V}^{-1}}{{s}^{-1}}\] Mobility of charged particle \[\mu =\frac{\left| {{V}_{d}} \right|}{E}=\frac{7.5\times {{10}^{-4}}}{3\times {{10}^{-10}}}\] \[=2.5\times {{10}^{6}}{{m}^{2}}{{V}^{-1}}{{s}^{-1}}\]
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