NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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Application +4 | -1

A bob of mass 10 kg is attached to wire 0.3 m long. Its breaking stress is

4.8 \times {10^7}N/{m^2}

. The area of cross section of the wire is

{10^{ - 6}}{m^2}

. The maximum angular velocity with which it can be rotated in a horizontal circle

View answer and explanation

Correct option: B

rad/sec

Option A (4 rad/sec) is correct because the maximum angular velocity is calculated using the breaking stress, area, mass, and length.

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

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