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A uniform solid cylinder of density 0 . 8 g cm - 3 floats in equilibrium in a combination of two non-mixing liquids A and B with its axis vertical. The densities of the liquids A and B are 0 . 7 g cm - 3 and 1 . 2 g cm - 3 , respectively. If the height of liquid A is h A = 1 . 2 cm and t he length of the part of the cylinder immersed in liquid B is 0 . 8 cm , then the force exerted by the liquid A on the cylinder is

Options

  1. Azero
  2. B84   N
  3. C96   N
  4. D40   N

Correct answer

A. zero

Step-by-step solution

Liquid A is applying the hydrostatic force on cylinder from all the sides. So, net force is zero.

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