A) \[2.5\times {{10}^{30}}\]
B) \[1.0\times {{10}^{13}}\]
C) \[1.0\times {{10}^{15}}\]
D) \[2.5\times {{10}^{36}}\]
Correct Answer: C
Solution :
\[\because \,\,\,5\text{ }\times \text{ }{{10}^{7}}have\,\,=\,\,1\] impurity \[\therefore \,\,\,\,\,\,\,\,\,\,l\,\,\,\_\_\_\_\_\_\_\_=\frac{1}{5\,\,\times \,\,{{10}^{7}}}\] \[\therefore \,\,\,\,\,\,\,\,\,5\,\,\times \,\,{{10}^{26}}\,\,\,\_\_\_\_\_\_\_\_=\frac{5\times {{10}^{26}}}{5\,\,\times \,\,{{10}^{7}}}\,\,=\,\,{{10}^{19}}\,\,\frac{atom}{{{m}^{3}}}\]\[=\,\,\frac{{{10}^{19}}}{{{10}^{6}}}\,\frac{atom}{c{{m}^{3}}}\,\,=\,\,{{10}^{13}}\,\frac{atom}{c{{m}^{3}}}\]You need to login to perform this action.
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