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RADIOACTIVITY MCQs

Total Questions : 16 | Page 2 of 2 pages
Question 11. What is the symbol for an alpha particle?
  1.    42He
  2.    0-1e
  3.    0+1 e
  4.    10n
 Discuss Question
Answer: Option A. -> 42He
Question 12. How are gamma rays different from beta particles?
  1.    Beta particles cannot penetrate people's skin; gamma rays can
  2.    Beta particles are extremely dangerous, gamma rays are less so
  3.    Gamma rays are extremely dangerous; beta particles are less so
  4.    Beta particles are safe for humans to ingest; gamma rays are not
 Discuss Question
Answer: Option C. -> Gamma rays are extremely dangerous; beta particles are less so
Question 13. Radioactivity is a nuclear phenomenon
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 14. Which isotope of carbon is radioactive?
  1.    carbon-12
  2.    carbon-13
  3.    carbon-14
  4.    carbon-13 and carbon-14
 Discuss Question
Answer: Option C. -> carbon-14
Question 15. What stops beta radiation
  1.    Paper
  2.    Air
  3.    Glass
  4.    Aluminium 3mm or thicker
 Discuss Question
Answer: Option D. -> Aluminium 3mm or thicker
Question 16. Gamma radiation has
  1.    the mass of an electron and a charge of +1
  2.    the mass of an electron and a charge of -1
  3.    a mass of 4 AMU and a charge of 2+
  4.    no mass or charge
 Discuss Question
Answer: Option D. -> no mass or charge

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