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Two electrons are fixed at a seperation ...

Two electrons are fixed at a seperation of 2d from each other.A proton is placed at the mid point and displaced slightly in a direction perpendicular to line joining the two electrons. Find frequency of oscillation of proton

A

`f = 1/ 2pi (sqrt( 2ke^2/md^3))`

B

`f = 1/ 2pi (sqrt( ke^2/md^3))`

C

`f = 1/ 2pi (sqrt( ke^2/2md^3))`

D

none

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Knowledge Check

  • 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 lt lt d) perpendicular to the line joining the two fixed charges. Proton will execute simple harmonic motion having angular frequency : (m = mass of charged particle)

    A
    `((2q^2)/(piepsilon_(0)md^3))^(1/2)`
    B
    `((piepsilon_(0)md^3)/(2q^2))^(1/2)`
    C
    `((q^2)/(2piepsilon_(0)md^3))^(1/2)`
    D
    `((2piepsilon_(0)md^3)/(q^2))^(1/2)`

  • Two parallel beams of protons and electrons, carrying equal currents are fixed at a separation d. The protons and electrons move in opposite directions. There is a point P on the straight perpendicular line joining the two beams at a distance x from one beam. The magnetic field at this point is B. If B is plotted against x, it can be represented by the curve.

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  • Find the add statement : Two lines are perpendicular to each other if they are,

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    Adjacent sides of a rectangle.
    B
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    D
    Adjacent sides of a square.

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