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Electron, Photon, Photoelectric Effect and X-Rays — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsElectron, Photon, Photoelectric Effect and X-Rays1 Mark
MCQ
An electron beam is moving between two parallel plates having electric field $1.125\times 10^{-6}N/m$ . A magnetic field $3\times 10^{-10}T$ is also applied so that beam of electrons do not deflect. The velocity of the electron is
  • A
    $4225\ m/s$
  • ✓
    $3750\ m/s $
  • C
    $2750\ m/s$
  • D
    $3200\ m/s$
✓

Answer

Correct option: B.
$3750\ m/s $
$3750\ m/s$

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