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2. structure of atom — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
Which is not electromagnetic radiation?
  • A
    Infrared rays
  • B
    $X-$ rays
  • ✓
    Cathode rays
  • D
    $\gamma$ rays
✓

Answer

Correct option: C.
Cathode rays
c
Electromagnetic waves contains only photons but Cathode-rays are beam of electrons therefore these are not considered as electromagnetic radiation.

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