A) \[\frac{D}{2}\]
B) \[\frac{2\,D}{3}\]
C) \[\frac{4\,D}{3}\]
D) \[\frac{9\,D}{10}\]
Correct Answer: D
Solution :
Force will be zero at the point of zero intensity \[x=\frac{\sqrt{{{m}_{1}}}}{\sqrt{{{m}_{1}}}+\sqrt{{{m}_{2}}}}d\] \[=\frac{\sqrt{81\,M}}{\sqrt{81\,M}+\sqrt{M}}\,D\,\,=\,\,\frac{9}{10}\,D\,\]You need to login to perform this action.
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