Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumEasy2 minPYQ_2009
PhysicsEasysingle choice

Assertion : Angular speed of a planet around the sun increases, when it is closer to the sun. Reason : Total angular momentum of the system remains constant.

Options:

Answer:
A
Solution:

According to law of conservation of angular momentum, when sum of external torques acting on a system is zero, then the total angular momentum of the system remains constant. Constant If increases, decreases and vice versa.

Stream:AIIMSSubject:PhysicsTopic:RotationSubtopic:Angular momentum
⏱ 2mℹ️ Source: PYQ_2009

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