NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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Two wires of same material and length but radii in the ratio 2:3 are stretched by two forces to produce equal elongation. The ratio of two forces is

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Correct option: D

0.172916667

The question is incomplete and does not provide enough information to determine the ratio of forces. It needs additional information such as the Young's modulus, length, and elongation to calculate the forces and their ratio.

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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

N/{m^2}

\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

radians. The shear strain developed will be The relationship between Young’s modulus

Y

, Bulk modulus

\mathrm{K}

and modulus of rigidity

\eta