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NUCLEAR SCIENCE MCQs

Total Questions : 22 | Page 1 of 3 pages
Question 1.


How many colours the sunlight spectrum has?



  1.    Three
  2.    Seven
  3.    Four
  4.    Five
 Discuss Question
Answer: Option B. -> Seven


Question 2.


Which of the following rays are more penetrating?



  1.    Beta rays
  2.    Alpha rays
  3.    Gamma rays
  4.    X-rays
 Discuss Question
Answer: Option C. -> Gamma rays


Question 3.

Nuclear fission is caused by the impact of



  1.    neutron
  2.    proton
  3.    deuteron
  4.    electron
 Discuss Question
Answer: Option A. -> neutron


Question 4.

Atoms of an element differ from those of all other elements in



  1.    atomic number and electronic configuration
  2.    number of neutrons and number of valence electrons
  3.    atomic number and number of valence electrons
  4.    number of neutrons and electronic configuration
 Discuss Question
Answer: Option A. -> atomic number and electronic configuration


Question 5.

According
to Avogadro's Hypothesis, the smallest particle of an element or a
compound, that can exist independently, is called ____ .



  1.    a molecule
  2.    a cation
  3.    an anion
  4.    an atom
 Discuss Question
Answer: Option A. -> a molecule


Question 6.

No two electrons in an atom can have the same set of four quantum numbers' is


  1.    Newton's law
  2.    Bohr's law
  3.    Aufbau principle
  4.    Pauli's exclusion principle
 Discuss Question
Answer: Option D. -> Pauli's exclusion principle


Question 7.


The dark lines in the solar spectrum are due to



  1.    absorption of corresponding wavelengths by the outer layers of the sun
  2.    destructive interference between waves of certain definite wavelengths
  3.    absorption of corresponding wavelengths by the prism used in the photograph
  4.    absence of corresponding wavelengths from the light emitted by the core of the sun
 Discuss Question
Answer: Option A. -> absorption of corresponding wavelengths by the outer layers of the sun


Question 8.

In an atomic nucleus, neutrons and protons are held together by



  1.    gravitational forces
  2.    exchange forces
  3.    coulombic forces
  4.    magnetic forces
 Discuss Question
Answer: Option B. -> exchange forces


Question 9.


Who suggested that most of the mass of the atom is located in the nucleus?



  1.    Thompson
  2.    Bohr
  3.    Rutherford
  4.    Einstein
 Discuss Question
Answer: Option C. -> Rutherford


Question 10.

The age of most ancient geological formations is estimated by



  1.    Ra - Si method
  2.    Potassium - argon method
  3.    C14 method
  4.    Uranium - lead method
 Discuss Question
Answer: Option D. -> Uranium - lead method


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