A) \[0.6\] gm
B) \[1.2\]gm
C) \[0.12\,\,gm\]
D) \[0.0\text{329 gm}\]
Correct Answer: B
Solution :
\[m=Z\,\,i\,\,t=3.3\times {{10}^{-4}}\times 1\times 3600\,\,gm\] \[=3.3\times 3.6\times {{10}^{-1}}gm\] Since, \[{{\pi }^{2}}=10,\] the product of \[3\cdot 3\] and \[3\cdot 6\] must be a little greater than\[10\]. As per the given options one of the possible values of this product must be\[12\]. So, \[m=12\times {{10}^{-1}}=1\cdot 2gm\]
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