The second nuclear weapons used in warfare over Nagasaki, Japan, contain energy equal about of TNT?
Correct answer: B. 20 kilotons
- A. 1.5 kilotons
- B. 20 kilotons
- C. 25 kilotons
- D. 30 kilotons
Explanation
The Nagasaki plutonium bomb, Fat Man, had an estimated explosive yield of about 21 kilotons of TNT, which is conventionally rounded to about 20 kilotons. Therefore option b matches the accepted approximate value. Students may choose 25 kilotons by rounding the estimate upward, but the commonly quoted figure is about 20 to 21 kilotons.
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