Lakshya Education MCQs

Question: Which of the following is the heaviest?
Options:
A. Neutron
B. Proton
C. Atom
D. Electron
Answer: Option C
Explanation :

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More Questions on This Topic :

Question 1. The most practical fuel for a thermonuclear reactor, both from economical and nuclear consideration is
  1.     Plutonium
  2.     Uranium
  3.     Deuterium
  4.     Thorium
Answer: Option C
Explanation :
Question 2. A moderator, in nuclear power plants, is a medium introduced into the fuel mass in order to
  1.     Slow down the speed of fast moving neutrons
  2.     Control the reaction
  3.     Reduce the temperature
  4.     Extracts heat from nuclear reaction
Answer: Option A
Explanation :
Question 3. Which of the following particles is the lightest?
  1.     Nucleus
  2.     Electron
  3.     Proton
  4.     Meson
Answer: Option B
Explanation :
Question 4. The commonly used material for shielding is
  1.     Lead or concrete
  2.     Lead and tin
  3.     Graphite or cadmium
  4.     Thick galvanized sheets
Answer: Option A
Explanation :
Question 5. In nuclear fission each neutron that causes fission releases
  1.     No new neutron
  2.     At least one new neutron
  3.     One new neutron
  4.     More than one new neutron
Answer: Option D
Explanation :
Question 6. Which of the following is the heaviest?
  1.     Neutron
  2.     Proton
  3.     Atom
  4.     Electron
Answer: Option C
Explanation :

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