EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Gravitation>JEE Advanced Paper 2 - 2013>Q 7

MEDIUM

JEE Advanced

IMPORTANT

Earn 100

Two bodies, each of mass $M$ , are kept fixed with a separation of $2 L$ . A particle of mass $m$ is projected from the midpoint of the line joining their centers, perpendicular to the line. The gravitational constant is $G$ . The correct statement (s) is (are) :

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Important Questions on Gravitation

HARD

JEE Advanced

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Gravitation>JEE Advanced Paper 1 - 2019>Q 8

Consider a spherical gaseous cloud of mass density

ρ (r)

in free space where

r

is the radial distance from its center. The gaseous cloud is made of particles of equal mass m moving in circular orbits about the common center with the same kinetic energy

K

. The force acting on the particles is their mutual gravitational force. If

ρ (r)

is constant in time, the particle number density

n (r) = ρ (r) / m

is: [

G

is universal gravitational constant]