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Dual Nature of Radiation and Matter question

2003 · Q144
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Dual Nature of Radiation and Matter question

2003 · Q144

NEETPhysicsDual Nature of Radiation and MatterMCQ+4 / −1
J.J. Thomson's cathode-ray tube experiment demonstrated that
  1. A
    cathode rays are streams of negatively charged ions
  2. B
    all the maas of an atom is essentially in the nucleus
  3. C
    the e/m of electrons is much greater than the e/m of protons
  4. D
    the e/m ratio of the cathode-ray particles changes when a different gas is placed in the discharge tube
View written solutionFree

Correct answer: C

(em)proton=11837(em)electron{\left( {{e \over m}} \right)_{proton}} = {1 \over {1837}}{\left( {{e \over m}} \right)_{electron}}(me​)proton​=18371​(me​)electron​

∴\therefore∴ (em)proton≪(em)electron{\left( {{e \over m}} \right)_{proton}} \ll {\left( {{e \over m}} \right)_{electron}}(me​)proton​≪(me​)electron​

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