NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

1 Medium

1 of 1

Application +4 | -1

The Poisson’s ratio of a material is

0.1

. If the longitudinal strain of a rod of this material is

{10^{ - 3}}

, then the percentage change in the volume of the rod will be

View answer and explanation

Correct option: B

0.08\,\,\%

Option B is correct. The percentage change in volume is calculated using the Poisson's ratio and the longitudinal strain, considering the relationship between volumetric strain and longitudinal strain.

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A 20 kg load is suspended by a wire of area of cross section is

1\,m{m^2}

. The stress produced in

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\left[ {g = 10\,m{s^{ - 2}}\,} \right]\,

In magnitude hydraulic stress is equal to: A wire extends by

\mathrm{1 mm}

when a force is applied. Double the force is applied to another wire of same material and length but half the radius of cross-section. The elongation of the wire in mm will be Stress to strain ratio is equivalent to A

2\,\,m

long rod of radius

1\,\,cm

which is fixed from one end is given a twist of

0.8

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Y

, Bulk modulus

\mathrm{K}

and modulus of rigidity

\eta