Question

37 question fluid statics

Answer 1

Relative density = ( weight of body in air-
Weight of body in liquid) /(weight of the body in air - weight of body in water)
Weight of the body in air =210 g
Weight of body in water =180 g
Weigh of the body in liquid =120g
(210 - 120) / ( 210 - 180) = 3
relative density = 3

The relative density of a metal = weigh of the metal in air /loss in weight of metal in water =
210/ (210-180) =210/30 =7

Metal = 210 / (210-180)= 210/30 = 7
In the same way
Relative density of liquid = (210 - 120) / (210-180) = 90 - 30 =3
Ans) 7, 3