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Physics · 2019
JEE Main · 12 January 2019, Shift 2 · Q29
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…
A load of mass M kg is suspended from a steel wire of length $\displaystyle 2$ m and radius $\displaystyle 1.0$ mm in Searle's apparatus experiment. The increase in length produced in the wire is $\displaystyle 4.0$ mm. Now the load is fully immersed in a liquid of relative density $\displaystyle 2$ . The relative density of the material of load is 8.
The new value of increase in length of the steel wire is :
Official answer
(2)
3.$\displaystyle 0$ mm
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.