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MASS DEFECT MCQs

Total Questions : 20 | Page 2 of 2 pages
Question 11. The energy equivalent in joules of the mass of2
  1.    2.0 *10-31𝐽
  2.    6.0 *10-23 𝐽
  3.    1.8 * 10-14𝐽
  4.    8.2 * 10-14 𝐽
 Discuss Question
Answer: Option C. -> 1.8 * 10-14𝐽
Question 12. As the binding energy of a nucleus increases, theenergy required to separate the nucleus intonucleons _____
  1.    decreases
  2.    increases
  3.    stays the same
  4.    becomes negative to positive
 Discuss Question
Answer: Option B. -> increases
Question 13. Mass of 6 electrons is ________ amu
  1.    0
  2.    1
  3.    2
  4.    3
 Discuss Question
Answer: Option A. -> 0
Question 14. Mass of protons equals to _________
  1.    0
  2.    1
  3.    2
  4.    All of above
 Discuss Question
Answer: Option B. -> 1
Question 15. Mass of 5 protons is _________ amu
  1.    1
  2.    2
  3.    4
  4.    5
 Discuss Question
Answer: Option D. -> 5
Question 16. The mass of 12C is 12 𝑢 where;1𝑢 = 1
  1.    The mass of 12C nucleus
  2.    The mass of 12C nucleus plus 6 electrons
  3.    The mass of 12C nucleus plus 12 electrons
  4.    The mass of 6 protons and 6 neutrons
 Discuss Question
Answer: Option B. -> The mass of 12C nucleus plus 6 electrons
Question 17. The atom 714𝑁has a mass of 14
  1.    0.1089 u
  2.    0.2026 u
  3.    0.2341 u
  4.    0.0003 u
 Discuss Question
Answer: Option A. -> 0.1089 u
Question 18. Which of the following statements is/are correctregarding the binding energy of the nucleus
  1.    I only
  2.    II only
  3.    III only
  4.    I and II only
 Discuss Question
Answer: Option D. -> I and II only
Question 19. When protons and neutrons combine to form a nucleus , mass of the nucleus will be
  1.    Equal to the mass of protons and neutrons before combining
  2.    Greater than mass of protons and neutrons before combining
  3.    less than mass of protons and neutrons before combining
  4.    All of above
 Discuss Question
Answer: Option C. -> less than mass of protons and neutrons before combining
Question 20. When nucleons form stable nucleus, bindingenergy is _______
  1.    created from nothing
  2.    destroyed into nothing
  3.    absorbed as high energy photons orparticles
  4.    released as high energy photons or particles
 Discuss Question
Answer: Option D. -> released as high energy photons or particles

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