Physics - Rotation Question with Solution | TestHub
PhysicsRotationMiscellaneousEasy2 minPYQ_2023
PhysicsEasyassertion reason
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A : An electric fan continues to rotate for some time after the current is switched off.
Reason R: Fan continues to rotate due to inertia of motion.
In the light of above statements, choose the most appropriate answer from the options given below.
Options:
Answer:
C
Solution:
When a fan is rotating, it acquires some kinetic energy. When the switch is off, because of its motion, it continues rotating for some time until it stops because of the air friction. So it is due to inertia of motion that fan continues to rotate.
Hence, both A and R are correct and R is the correct explanation of A.
Stream:JEESubject:PhysicsTopic:RotationSubtopic:Miscellaneous
⏱ 2mℹ️ Source: PYQ_2023
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