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A uniform electric field 'E' exists betw...

A uniform electric field 'E' exists between two parallel plates having opposite having opposite charge on each plates. An electron enters the field between the plates with speed `v_0` as shown in the figure. If length of each plate is l then angle with which electron deviates from its initial path is (m is mass of electron ) (##AAK_TST_05_NEET_YEAR(19)_PHY_E05_133_Q01##)

A

`tan^-1((eEl)/(2mv_0^2))`

B

`tan^-1((eEl)/(mv_0^2))`

C

`sin^-1((eEl)/(mv_0^2))`

D

`sin^-1((eEl)/(2mv_0^2))`

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Knowledge Check

  • A uniform electric field E is created between two parallel ., charged plates as shown in figure . An electron . enters the field symmetrically between the plataes with a . speed v_0. The length of each plate is l. Find the angle of . deviation of the path of the electron as it comes out . of the field.

    A
    `theta = tan^(-1) (el)/(mv_0^2)`
    B
    `theta = tan^(-1) (eEl)/v_0^2`
    C
    `theta = tan^(-1) (eEl)/(mv_0^2)`
    D
    `theta = tan^(-1) (eEl)/v_0^2`

  • A electric field of 1.5xx10^(4)NC^(-10 exists betwene two parallel plates of lengths 2 cm. An electron enters the region between the plates at right angles to the field with a kinetic energy of E_(k)=2000eV . The deflection that the electron experiencs at the deflecting plates is

    A
    0.34 mmn
    B
    0.57 mm
    C
    7.5 mm
    D
    0.75 mm

  • Two parallel plates carry opposites charges such that the electric field in the space between them is in upward direction. An electron is shot in the space and parallel to the plates . Its deflection from the original direction will be

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    Circular
    D
    Elliptical

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