A) \[\frac{9}{10}T\]
B) \[T\sqrt{\frac{10}{9}}\]
C) Unchanged
D) \[T\sqrt{\frac{9}{10}}\]
Correct Answer: B
Solution :
[b] \[T=2\pi \sqrt{\frac{\ell }{g}}\] In a liquid \[T'=2\pi \sqrt{\frac{\ell }{g\left\{ 1-\frac{1}{\sigma } \right\}}}\] \[\sigma =\frac{density\,of\,bob}{density\text{ }of\text{ }liquid}\] \[\sigma =10\] \[T'=2\pi \sqrt{\frac{\ell }{g\left\{ 1-\frac{1}{10} \right\}}}\] \[=2\pi \sqrt{\frac{\ell }{g}}\sqrt{\frac{10}{9}}\] \[T'=T\sqrt{\frac{10}{9}}\]You need to login to perform this action.
You will be redirected in
3 sec