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A load of mass M kg is suspended from a ...

A load of mass M kg is suspended from a steel wire of length 2 m and radius 1.0 mm in Searle's apparatus experiment. The increase in length produced in the wire is `4.0 mm`, Now the loads is fully immersed in a liquid of relative density 2. The relative density of the material of load is 8.
The new value of increase in length of the steel wire is :

A

3.0mm

B

Zero

C

5.0mm

D

4.0mm

Text Solution

Verified by Experts

The correct Answer is:
A
`delta = (rho_(0)Vg xx L)/(Ay)`
`delta.= ((rho_(0)- rho_(L)) vg xx L)/(AY)`
`rArr (delta.)/(delta) = (rho_(0)- rho _(L))/(rho_(0)) = (8-2)/(8)`
`delta.= 3mm`
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