1.

A brass sphere of mass 0.2 kg falls freelyfrom a height of 24m and bounces to a height of 8m from the ground. If the dissipated energy in this process is dosorbed by the sphere the rise in its temperature is (specific heat of brass=360 J " kg"^(-1)k^(-1) and g=10ms^(-2)).

Answer»

`0.44^(@)C`
`0.66^(@)C`
`0.77^(@)C`
`0.88^(@)C`

ANSWER :A


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