2. Solved Papers
  3. JAMIA MILLIA ISLAMIA

JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2012

  • question_answer
        A raft of wood of mass 120 kg floats in water. The weight that can be put on the raft to make it just sink, should be \[{{d}_{raft}}=600\,kg/{{m}^{3}}\]

    A)  80kg                     

    B)  50kg

    C)  60kg                     

    D)  30kg

    Correct Answer: A

    Solution :

                    Volume of raft is given by \[V=\frac{m}{d}=\frac{120}{600}=0.2\,{{m}^{3}}\] If the raft is immersed fully in water. Then weight of water displaced is \[=V{{d}_{water}}\] \[=0.2\times {{10}^{3}}=200\text{ }kg\] Hence, the additional weight which is supported by raft \[=200\text{ }kg-120\text{ }kg=80\text{ }kg\]


You need to login to perform this action.
You will be redirected in 3 sec spinner