Loading...
UPSC 1995: The difference between a nuclear reactor and an atomic bomb is that
(a)no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction
(b)the chain reaction in nuclear reactor is controlled
(c)the chain reaction in nuclear reactor is not controlled
(d)no chain reaction takes place in atomic bomb while it takes place in nuclear reactor
Attempt This Question
Not attemptedCorrect Answer: (b) the chain reaction in nuclear reactor is controlled
Both devices rely on fission chain reactions, but in a nuclear reactor control rods and moderators keep the reaction at a steady, self-sustaining rate; in an atomic bomb the chain reaction is uncontrolled and explosive. Therefore the key distinction is that the reactor’s chain reaction is controlled. Options (a) and (d) wrongly claim reactors have no chain reaction, while (c) incorrectly states the reactor’s reaction is uncontrolled. ([gkseries.com](https://www.gkseries.com/upsc-previous-years-solved-questions-and-answers/chemistry/discussion-5?utm_source=openai))
Related Current Affairs
Related UPSC Questions
More from Energy & Environment
Related Science & Technology Topics
Frequently Asked Questions
What is the correct answer to this UPSC 1995 Science & Technology question?▼
The correct answer is option (b): the chain reaction in nuclear reactor is controlled. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Energy & Environment question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 1995, GS Paper 1, as Question 116. It falls under Science & Technology > Energy & Environment.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
How many UPSC Prelims questions have been asked from Energy & Environment?▼
UPSC has asked 48 questions from Energy & Environment (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.