Start Free Mock LoginAlready registered? Login here

Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumEasy2 minPYQ_2021

PhysicsEasysingle choice

Two rotating bodies $P$ and $Q$ of masses ' $m$ ' with moment of inertia $I_{P}$ and $I_{Q} (I_{Q} > I_{P})$ have equal Kinetic energy of rotation. If $L_{P}$ and $L_{Q}$ be their angular momenta respectively then

Options:

Answer:

Solution:

$Kinetic energy = \frac{L _{P}^{2}}{2 I _{P}} = \frac{L _{Q}^{2}}{LI _{Q}} ∴ \frac{L _{Q}^{2}}{L _{P}^{2}} = \frac{I _{Q}}{I _{P}} ∵ I_{Q} > I_{P} we get L_{Q} > L_{P}$

Stream:MHT_CETSubject:PhysicsTopic:RotationSubtopic:Angular momentum

⏱ 2mℹ️ Source: PYQ_2021

Doubts & Discussion

Loading discussions...