Charge is distributed within a sphere of radius R with a volume charge density ρ (r) = A/(r²)e^(- 2r/s), where A and a are constants. If Q is the total charge of this charge distribution, the radius R is:

(B) a/2 log (1/(1 - Q/(2π aA)))

Electrostatics: JEE Main 2019 Physics question

JEE Main 2019 · 9 Jan, Evening shift · Q6921

JEE Main 20199 Jan, Evening shiftPhysicsHardElectrostatics167× since 2002

Charge is distributed within a sphere of radius R with a volume charge density

\rho \left( r \right) = {A \over {{r^2}}}{e^{ - {{2r} \over s}}},

where A and a are constants. If Q is the total charge of this charge distribution, the radius R is :

JEE Main 2019 · 9 Jan, Evening shift · Q6921

JEE Main 20199 Jan, Evening shiftPhysicsHardElectrostatics167× since 2002

Charge is distributed within a sphere of radius R with a volume charge density

\rho \left( r \right) = {A \over {{r^2}}}{e^{ - {{2r} \over s}}},

where A and a are constants. If Q is the total charge of this charge distribution, the radius R is :