Ans. (c) 10. a thin massless rod of length 2/ has equal point masses m attached at its ends (see figure). the rod is rotating about an axis passing through its

Ans. (c) 10. A thin massless rod of length 2/ has equal point masses m attached at its ends (see figure). The rod is rotating about an axis passing through its centre and making angle 6 with it. The magnitude of the rate of change of its angular momentum | dt (a) 2mFo'sin & cos (b) 2mPo 'sin 6 (c) 2mFo sin' 0 (d) 2mFo #cos 0