Question

question 9 of 30 which of the following was the source of energy in the first nuclear weapons? a a controlled nuclear chain reaction b an uncontrolled nuclear chain reaction c nuclear fusion d radioactive decay

Explanation:

The first nuclear weapons, such as atomic bombs, relied on rapid, unregulated energy release from nuclear fission. A controlled chain reaction (A) is used in reactors, not weapons. Nuclear fusion (C) powers hydrogen bombs (later developed), and radioactive decay (D) is too slow. Uncontrolled chain reactions (B) are the energy source for early nuclear weapons.

Answer:

B. An uncontrolled nuclear chain reaction