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Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

Two rings of the same radius $(r)$ and mass $(m)$ are placed such that their centres are at a common point and their planes are perpendicular to each other. The moment of inertia of the system about an axis passing through the centre and perpendicular to the plane of one of the ring is

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Answer:

Solution:

$I_{1} = m r^{2}$
$I_{2}$ = moment of inertia about one of the diameters

$= \frac{1}{2} {mr}^{2}$
$∴ I = I_{1} + I_{2} = \frac{3}{2} {mr}^{2}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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