Two electrons each are fixed |Electrostatics|JEEMAIN 2021

JEE MAIN 2021

24-02-2021 S2

Question

Two electrons each are fixed at a distance '2d'. A third charge proton placed at the midpoint is displaced slightly by a distance x (x << d) perpendicular to the line joining the two fixed charges. Proton will execute simple harmonic motion having angular frequency : (m = mass of charged particle)

Select the correct option:

$\left(\frac{2 q^2}{\pi \varepsilon_0 m d^3}\right)^{\frac{1}{2}}$

$\left(\frac{\pi \varepsilon_0 m d^3}{2 q^2}\right)^{\frac{1}{2}}$

$\left(\frac{q^2}{2 \pi \varepsilon_0 m d^3}\right)^{\frac{1}{2}}$

$\left(\frac{2 \pi \varepsilon_0 m d^3}{q^2}\right)^{\frac{1}{2}}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution