68. A rigid body rotates with an angular momentum L. If
rotational kinetic energy is made 4 times, its angula
momentum will become:
(a) 4L
(b) 16L
(c) 2L
(d)2L
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A rigid body rotates with an angular momentumL.if rotation k.E. is made 4timea, it's angular momentum will become.c.2L
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