A particle of mass moves in circular orbits with potential energy

PHYSICS · Single correct · CBSE · Physics · Atoms · Atoms

Problem

A particle of mass

m

moves in circular orbits with potential energy

V(r) = Fr

, where

F

is a positive constant and

r

is its distance from the origin. Its energies are calculated using the Bohr model. If the radius of the particle's orbit is denoted by

R

and its speed and energy are denoted by

v

and

E

, respectively, then for the

n^{\text{th}}

orbit (here

h

is the Planck's constant) (1)

R \propto n^{1/3}

and

v \propto n^{2/3}

(2)

R \propto n^{2/3}

and

v \propto n^{1/3}

(3)

E = \frac{3}{2} \left( \frac{n^2 \hbar^2 F^2}{4\pi^2 m} \right)^{1/3}

(4)

E = 2 \left( \frac{n^2 \hbar^2 F^2}{4\pi^2 m} \right)^{1/3}