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Radioactivity — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsRadioactivity1 Mark
MCQ
A radioactive substance emits radiations:
  • A
    α , β and γ simultaneously
  • B
    In the order α , β and γ one by one
  • C
    X-ray and Y-ray
  • ✓
    α or β
✓

Answer

Correct option: D.
α or β
α or β

Hint: In a single radioactive decay, α and β articles are never emitted simultaneously. There will be either an α- emission or a β - emission, which may be accompanied by γ emission.

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