Question : In nuclear reactors, moderators are used to?
Option 1: Accelerate neutrons
Option 2: Absorb the neutrons
Option 3: Slow down the neutrons.
Option 4: Generate neutrons
Correct Answer: Slow down the neutrons.
Solution : The answer is to Slow down the neutrons.
Moderators are employed in nuclear reactors to delay or reduce the speed of fast-moving neutrons. The fundamental job of moderators is to increase the likelihood of nuclear fission by lowering neutron kinetic energy, making them more effective in sustaining a nuclear chain reaction.
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Question : Two elements which are used to absorb neutrons to control the chain reaction during nuclear fission are
Option 1: Boron and Cadmium
Option 2: Boron and Plutonium
Option 3: Cadmium and Uranium
Option 4: Uranium and Boron
Question : What are the components of the nucleus of an atom?
Option 1: Only protons
Option 2: Protons and neutrons
Option 3: Neutrons and electrons
Option 4: Only neutrons
Question : Cathode rays are a beams of:
Option 1: Neutrons
Option 2: Protons
Option 3: Positrons
Option 4: Electrons
Question : Energy is continuously created in the sun due to
Option 1: Nuclear fusion
Option 2: Nuclear fission
Option 3: Radioactivity
Option 4: Artificial radioactivity
Question : Select the most appropriate ANTONYM of the given word.
EXPEL
Option 1: leave
Option 2: absorb
Option 3: erupt
Option 4: remove
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