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Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumMedium2 minPYQ_2016

PhysicsMediumsingle choice

Two rotating bodies, $A$ and $B$ of masses, $m$ and $2 m$ with moments of inertia. $I_{A}$ and $I_{B} (I_{B} > I_{A})$ have equal kinetic energy of rotation. If, $L_{A}$ and $L_{B}$ be their angular momenta, respectively, then,NEET 2016 (Phase 2)

Options:

Answer:

Solution:

$E = \frac{L^{2}}{2 I}$ .

$\Rightarrow E_{A} = E_{B}$

$\Rightarrow \frac{L_{A}^{2}}{2 I_{A}} = \frac{L_{B}^{2}}{2 I_{B}}$ .

$I_{B} > I_{A} \Rightarrow L_{B} > L_{A}$ .

Stream:NEETSubject:PhysicsTopic:RotationSubtopic:Angular momentum

⏱ 2mℹ️ Source: PYQ_2016

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