A silver ingot weighing $2.1 kg$ is held by a string so as to be completely immersed in a liquid of relative density $0.8$. The relative density of silver is $10.5$ . The tension in the string in $kg-wt$ is
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(b)Apparent weight $ = V(\rho - \sigma )g = \frac{M}{\rho }(\rho - \sigma )g$
$ = M\left( {1 - \frac{\sigma }{\rho }} \right)g$$ = 2.1\left( {1 - \frac{{0.8}}{{10.5}}} \right)g = 1.94\,g$N
$= 1.94 Kg-wt$
$ = M\left( {1 - \frac{\sigma }{\rho }} \right)g$$ = 2.1\left( {1 - \frac{{0.8}}{{10.5}}} \right)g = 1.94\,g$N
$= 1.94 Kg-wt$
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