The potential energy of a system increas...

The potential energy of a system increased if work is done

upon the system by a noncenservative force

by the system against a canservative force

by the system against a nonconservative force

upon the system by a conservative force

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A : The potential energy of a system increases when work is done by conservative force. R : Kinetic energy can change into potential energy and vice-versa.

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If 2kcal heat is given to a system and 6 kcal work is done on the system then the internal energy of system will increase by how many kcal?

STATEMENT-1 When a conservative force performs positive work on a body, potential energy of the system decreases. STATEMENT-2 Work done by a conservative force does not produce any change in kinetic energy.

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