The electrostatic field due to a point charge depends on the distance r as `1/r^2`. Indicate which of the following quantities shows same dependence on r.A. Intensity of light from a point sourceB. Electrostatic potential due to a point charge.C. Electrostatic potential at a distance r from the centre of a charged metallic spher. Given rlt radius of the sphere.D. None of these

The electrostatic field due to a point charge depends on the distance

1.	The electrostatic field due to a point charge depends on the distance r as `1/r^2`. Indicate which of the following quantities shows same dependence on r.A. Intensity of light from a point sourceB. Electrostatic potential due to a point charge.C. Electrostatic potential at a distance r from the centre of a charged metallic spher. Given rlt radius of the sphere.D. None of these
Answer» Correct Answer - A (a) `I prop 1/(r^2), V prop 1/r , V prop r^0` .

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