JEE Mains · Physics · STD 11 - Fluid mechanics
- JEE Mains 2020
- Medium
- MCQ
A leak proof cylinder of length \(1 \;\mathrm{m},\) made of a metal which has very low coefficient of expansion is floating vertically in water at \(0^{\circ} \mathrm{C}\) such that its height above the water surface is \(20\; \mathrm{cm} .\) When the temperature of water is increased to \(4^{\circ} \mathrm{C},\) the height of the cylinder above the water surface becomes \(21 \;\mathrm{cm} .\) The density of water at \(\mathrm{T}=4^{\circ} \mathrm{C},\) relative to the density at \(\mathrm{T}=0^{\circ} \mathrm{C}\) is close to
Pick an option to check your answer.
Answer & Solution
Correct Answer
(A) \(1.01\)
Step-by-step Solution
Detailed explanation
\(\mathrm{m}=\rho_{0} \mathrm{A}(80)\)
\(\mathrm{m}=\rho \mathrm{A}(79)\)
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