The period of simple pendulum whose bob is a hollow mentallic sphere is 'T'. The period is T_(1) when the bob is filled with sand , T_(2) when the bob is filled with mercury and T_(3) when it is half filled with sand then

The period of simple pendulum whose bob is a hollow mentallic sphere i

1.	The period of simple pendulum whose bob is a hollow mentallic sphere is 'T'. The period is T_(1) when the bob is filled with sand , T_(2) when the bob is filled with mercury and T_(3) when it is half filled with sand then
Answer» `T=T_(1)+T_(2)gtT_(3)` `T_(1)=T_(2)gtT_(3)GTT` `T_(1)gtT_(3)gtT_(1)=T_(2)` `T=T_(1)=T_(2)ltT_(3)` ANSWER :D