an object suspended by a wire stretches out by 10mm. when object is immersed in a liquid the elongation in wire reduces by 10/3 mm. The ratio of the relative densities of the object and liquid is
a. 3:1 b. 1:3 c. 1:2 d. 2:1
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A; 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
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A; 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
If you find this helpfula please award Best
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