Student Login

Home›Chapters›Rotational Motion PYQs›Angular Momentum & its Conservation›Question 89

JEE Main 2007 (AIEEE) · Angular Momentum & its Conservation

Angular Momentum & its Conservation question from JEE Main 2007 (AIEEE)

Q89JEE Main 2007 · AIEEEEasy

Angular Momentum & its Conservation

Angular momentum of the particle rotating with a central force is constant due to

Show answer and solution

Answer: (d)

A central force acts along $\vec r$ , so $\vec\tau = \vec r \times \vec F = 0$ .
$\dfrac{d\vec L}{dt} = \vec\tau = 0$ , so $\vec L$ is constant.
So the answer is (d) zero torque.

Report a mistake

More questions on Angular Momentum & its Conservation

A thin circular ring of mass m and radius R is rotating about its axis with a constant…JEE Main 2006 (AIEEE)
A solid sphere is rotating in free space. If the radius of the sphere is increased…JEE Main 2004 (AIEEE)
A round disc of moment of inertia I 2 about its axis perpendicular to its plane and…NEET 2004 (AIPMT)
A thin circular ring of mass M and radius r is rotating about its axis with a constant…NEET 2003 (AIPMT)
A particle of mass m moves along line PC with velocity v as shown. What is the angular…JEE Main 2002 (AIEEE)
A disc is rotating with angular speed ω. If a child sits on it, what is conservedNEET 2002 (AIPMT)
Initial angular velocity of a circular disc of mass M is ω₁. Then two small spheres of…JEE Main 2002 (AIEEE)
A thin circular ring of mass M and radius r is rotating about its axis with a constant…NEET 1998 (AIPMT)