Question

An object is suspended by a wire stretches it by 10 mm when the object is immersed in a liquid the elongation in wire reduces by 10/3 mm. The ratio of relative densities of the object and liquid is

Answer 1

Answer:

; If the stretch is reduced by 1/3, then the

apparent weight has been reduced by 1/3.

Apparent weight w' W(1-p/po)

where p is the density of the medium

and po is the density of the object

We have

w/w 2/3 1- p/po

P/po

po/p 3/1

So answer is 3/1

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