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KCET2008PhysicsMechanical Properties of Fluids

A body weighs 50 ~g in air and 40 ~g in water. How much would it weigh in a liquid of specific gravity 1.5 ?

Options

  1. A30 ~g
  2. B35 ~g
  3. C65 ~g
  4. D45 ~g

Correct answer

B. 35 ~g

Step-by-step solution

_ L _ W = upthrust on body in liquid upthrust on body in water aligned 1.5 1 &= x [50-40] g x &=15 ~g aligned upthrust on body in liquid =15 ~g Weight of the body =50 ~g Hence, body will weigh (50-15)=35 ~g in the liquid.

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