Paper 1 · People, Development and Environment
UGC NET December 2023 (11.12.2023) Shift-I
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 correct ✓ Correct
BBoth Statement I and Statement II are incorrect
CStatement I is correct but Statement II is incorrect
DStatement I is incorrect but Statement II is correct
Correct answer: (A) Both Statement I and Statement II are correct — Both statements are correct, so the answer is both Statement I and Statement II are correct.
Explanation
★Both statements are correct, so the answer is both Statement I and Statement II are correct.
★A nuclear power reactor sustains a controlled fission chain reaction.
★It extracts the released energy as heat to generate power, so Statement I is correct.
★Nuclear fission splits a heavy nucleus into smaller nuclei, releasing energy.
★Light water reactors use ordinary water as both moderator and coolant.
★So Statement II is also correct, making both true.
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