Assertion: The hydrogen bomb is more harmful than a nuclear bomb.

Reason: Nuclear fusion produces more energy than nuclear fission.

Which of the following statements is true?

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Both assertion and reason are true and the reason is the correct explanation of assertion.

Both assertion and reason are true and the reason is not the correct explanation of assertion.

The assertion is true, but the reason is False.

The assertion is false, but the reason is True.

answer is A.

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Detailed Solution

Both assertion and reason are true and the reason is the correct explanation of assertion.
Assertion: Nuclear fission is the process by which a heavy, unstable nucleus splits into two lighter nuclei, whereas nuclear fusion is the process by which two light nuclei combine and release massive amounts of energy. Hydrogen or its isotopes are light and mostly participate in the fusion process and produce a heavy element. And the combination of nuclei produces more energy in comparison to the disintegration of a nucleus into different nuclei.
Reason: The hydrogen bomb is based on thermonuclear fusion reaction. A nuclear bomb based on the fission of uranium

235

or plutonium

239

is placed at the core of the hydrogen bomb. The nuclear bomb is embedded in a substance which contains deuterium and lithium. The hydrogen bomb is more harmful than a nuclear bomb because nuclear fusion produces more energy than nuclear fission.

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