Question

A body weighs 5o g in air 30 g in water and 34 g in liquid. Calculate the density of the body and the liquid.

Answer 1

Explanation:

When the ball is immersed in water, it displaces some amount of water which is

(80 - 60) = 20g

Volume of water = 1 g cm^-3

Volume of ball = Volume of water it displaces

= 20g/ 1 = 20 cm^3

Density of ball = Mass/Volume

= 80/20 = 4 g cm^-3

But the ball displaces 80-50 = 30g of liquid

So density of liquid = 30/20 = 1.5 g cm^-3

Hence, density of liquid = 1.5 g cm^-3

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