NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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In materials like aluminium and copper, the correct order of magnitude of various elastic modulii is:

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Correct option: C

Shear modulii

<

Young's modulii

<

bulk modulii

Option C (Shear modulii

<

Young's modulii

<

bulk modulii) is correct because, for most materials, the shear modulus is the smallest, followed by Young's modulus, and the bulk modulus is the largest.

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

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

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

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\mathrm{K}

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\eta