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Arpit Prasad Jhaveri
Asked: 2022-11-11T02:24:39+05:30 In:

A uniform metal rod of length `L` and mass `M` is rotating about an axis passing throuth one of the ends perpendicular to the rod with angular speed `omega`. If the temperature increases by `t^@C` then the change in its angular velocity is proportional to which of the following ? (Coefficient of linear expansion of rod `=alpha`)
A. `sqrt(omega)`
B. `omega`
C. `omega^(2)`
D. `1/(omega)`

A uniform metal rod of length `L` and mass `M` is rotating about an axis passing throuth one of the ends perpendicular to the rod with angular speed `omega`. If the temperature increases by `t^@C` then the change in its angular velocity is proportional to which of the following ? (Coefficient of linear expansion of rod `=alpha`)
A. `sqrt(omega)`
B. `omega`
C. `omega^(2)`
D. `1/(omega)`
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1 Answer

  1. Correct Answer – B
    `Iprop1/(omega)…..1, I=(ML^(2))/3rArrI prop L^(2)….(2)`
    from (1) and (2) `omegaprop1/(L^(2))`

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