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Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumEasy2 minPYQ_2020

PhysicsEasysingle choice

By keeping moment of inertia of a body constant, if we double the time period, then angular momentum of body

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Answer:

Solution:

Angular of the body is given by

$L = I ω$

or $L = I \times \frac{2 π}{T} o r L \propto \frac{1}{T}$

$\Rightarrow$ $\frac{L_{1}}{L_{2}} = \frac{T_{2}}{T_{1}}$

$\frac{L}{L_{2}} = \frac{2 T}{T}$

$(A s, T_{2} = 2 T)$

So, $L_{2} = \frac{L}{2}$

Thus, on doubling the time period, angular momentum of body becomes half.

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Angular momentum

⏱ 2mℹ️ Source: PYQ_2020

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