Physics · 2021
JEE Main · 17 March 2021, Shift 2 · Q20
An object is located at 2 km beneath the surface of the water. If the fractional compression (Δ V)/V is 1.36 %, the ratio of hydraulic stress to the…
An object is located at $\displaystyle 2$ km beneath the surface of the water. If the fractional compression $\displaystyle \frac{\Delta \mathrm{V}}{\mathrm{V}}$ is $\displaystyle 1.36 \%$, the ratio of hydraulic stress to the corresponding hydraulic strain will be
\_\_\_\_.
[ Given : density of water is $\displaystyle 1000 \mathrm{kgm}^{-3}$ and $\displaystyle \mathrm{g}=9.8 \mathrm{~ms}^{-2}$.]
Official answer
(4)
$\displaystyle 1.44 \times 10^9 \mathrm{Nm}^{-2}$
More from Mechanical Properties of Solids
- The length of a light string is 1.4 m when the tension on it is 5 N. If the tension increases to 7 N, the length of the string is 1.56 m. The…2025
- Two slabs with square cross section of different materials (1,2) with equal sides (l) and thickness d_1 and d_2 such that d_2=2 d_1 and l>d_2.…2025
- A massless spring gets elongated by amount x_1 under a tension of 5 N. Its elongation is x_2 under the tension of 7 N. For the elongation of (5 x_1-2…2025
- A metal block of mass m is suspended from a rigid support through a metal wire of diameter 14 mm. The tensile stress developed in the wire under…2023
- A uniform metallic wire is elongated by 0.04 m when subjected to a linear force F. The elongation, if its length and diameter is doubled and…2021
- With rise in temperature, the Young's modulus of elasticity:2024
- A string of area of cross-section 4 mm^2 and length 0.5 m is connected with a rigid body of mass 2 kg. The body is rotated in a vertical circular…2022
- A wire of length L and radius r is clamped rigidly at one end. When the other end of the wire is pulled by a force F, its length increases by 5 cm.…2022
JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.