Physics
A body of volume V and density ρ is kept completely immersed in a liquid of density ρL . If g is the acceleration due to gravity, write expressions for the following —
(i) The weight of the body,
(ii) The upthrust on the body,
(iii) The apparent weight of the body in liquid,
(iv) The loss in weight of the body.
Answer
Given,
volume = V
density = ρ
density of liquid = ρL
acceleration due to gravity = g
(i) The weight of the body, acting downwards = V ρ g
(ii) The upthrust on the body, acting upwards = V ρL g
(iii) The apparent weight of the body in liquid = V(ρ - ρL)g
(iv) The loss in weight of the body = V ρL g
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