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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
In Bainbridge mass spectrograph a potential difference of $1000\ V$ is applied between two plates distant $1 \ cm$ apart and magnetic field in $B = 1T.$ The velocity of undeflected positive ions in $m/s$ from the velocity selector is
  • A
    $10^7 \mathrm{~m} / \mathrm{s}$
  • B
    $10^4 \mathrm{~m} / \mathrm{s}$
  • ✓
    $10^5 \mathrm{~m} / \mathrm{s}$
  • D
    $10^2 \mathrm{~m} / \mathrm{s}$
✓

Answer

Correct option: C.
$10^5 \mathrm{~m} / \mathrm{s}$
$10^5 \mathrm{~m} / \mathrm{s}$

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