Question

The angular momentum of a rotating body is '\(L\)'. When frequency is tripled and kinetic energy is made one-third, the new angular momentum becomes

• A. \(\frac{1}{9} L\)
• B. \(\frac{1}{3} L\)
• C. \(6 L\)
• D. \(9 L\)

Hint:

Remember $K.E. = \frac{1}{2} L \omega$, which is analogous to $K.E. = \frac{1}{2} p v$ in linear motion.

Answer 1

The Correct Option is A