A point sized sphere mass ‘m’ is suspended from a point using a string of length ‘l’. It is then pulled to a side till the string is horizontal and released. As the mass passes through the portion where the string is vertical, magnitude of its angular momentum is

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.

An Intiative by Sri Chaitanya

$mℓ \sqrt{2 gℓ}$

$mℓ \sqrt{3 gℓ}$

$mℓ \sqrt{gℓ}$

$mℓ \sqrt{gℓ / 2}$

answer is B.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Applying law of conservation of energy

$\frac{1}{2} {mv}^{2} = mgl$
$\Rightarrow v = \sqrt{2 gl}$

$∴ L = mvl$

$∴ L = ml \cdot \sqrt{2 gl}$

Watch 3-min video & get full concept clarity

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test