Given below are two statements. In the light of the above statements, choose the most appropriate answer from the options given below:
Statement I:A nuclear power reactor is a system designed to sustain a fission chain reaction and extract useful energy.
Statement II:Light water reactors use ordinary water as the moderator.
ABoth Statement I and Statement II are true ✓ Correct
BBoth Statement I and Statement II are false
CStatement I is true but Statement II is false
DStatement I is false but Statement II is true
Correct answer: (A) Both Statement I and Statement II are true
Explanation
Both Statement 1 and Statement 2 are true.
Statement 1 is true because a nuclear power reactor is designed to sustain a controlled fission chain reaction and extract useful energy as heat.
Statement 2 is true because light water reactors use ordinary water as the moderator to slow down neutrons.
A moderator slows fast neutrons so that they more readily trigger further fission events.
The heat released boils water into steam that drives turbines to generate electricity.
Light water reactors are the most common reactor type in use worldwide.
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