A metal wire of uniform mass density having length L and mass M is bent to form a semicircular arc and a particle of mass m is placed at the centre of the arc. The gravitational force on the particle by the wire is:

Gravitation: JEE Main 2024 Physics question

JEE Main 2024 · 4 Apr, Morning shift · Q7285

JEE Main 20244 Apr, Morning shiftPhysicsMediumGravitation159× since 2002

A metal wire of uniform mass density having length

L

and mass

M

is bent to form a semicircular arc and a particle of mass

\mathrm{m}

is placed at the centre of the arc. The gravitational force on the particle by the wire is :