8th Class Science Force and Pressure Question Bank Force and Pressure

  • question_answer
    DIRECTIONS: Read the passage given below and answer the questions that follow. Passage Liquid pressure in a container doesn't depend on the shape of the container but it any depends on the height of the liquid column. The pressure due to a liquid at a point at a depth h from the surface of the liquid is given by\[P=\rho gh\]where, \[\rho \] is the density of the liquid and g is the acceleration due to gravity. A cylindrical container is full of water. The pressure at the bottom is P. Now, the water is replaced by cooking oil of density twice the density of water. The new pressure at the bottom is

    A) 4 P                  

    B) 2 P

    C) 1.5 P

    D) 3P

    Correct Answer: B

    Solution :

         \[P=\rho gh\]              \[P'=2\rho gh\Rightarrow P'=2P\]


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