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Q.

Assertion: In circular motion work done by centripetal force is not zero always
Reason: If the speed of a particle increases or decreases in circular motion, net force acting on the particle does not remain towards the centre

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a

Assertion is correct but reason is incorrect

b

Both Assertion and reason are correct but reason is not the correct explanation for assertion

c

Both Assertion and reason are correct and reason is the correct explanation for assertion

d

Assertion is incorrect but reason is correct

answer is D.

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Detailed Solution

WC=FC.S=0  as centripetal force is perpendicular to displacement   F=FC+FT

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Assertion: In circular motion work done by centripetal force is not zero alwaysReason: If the speed of a particle increases or decreases in circular motion, net force acting on the particle does not remain towards the centre