A smooth tube of certain mass closed at both ends is rotated in a gravity free space and released. The two balls shown in figure moves towards the ends of the tube and stay there. Then which statement is incorrect about this whole system

827-637

  • A

    Total angular momentum will remain conserved

  • B

    Total linear momentum will remain conserved

  • C

    Total kinetic energy of system will decrease

  • D

    Total mechanical energy will remain constant

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