Question

Assertion : Hydrogen bomb is more powerful than atomic bomb.
Reason : In hydrogen bomb, fusion reaction is initiated.

• A. If both (A) and (R) are correct, and (R) is the correct explanation of (A).
• B. If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
• C. If (A) is correct, but (R) is correct.
• D. If (A) is incorrect, but (R) is correct.
• E. If both (A) and (R) are incorrect.

Answer 1

The correct option is B If both (A) and (R) are correct, but (R) is not the correct explanation of (A).

A hydrogen bomb has the potential to be $1,000$ times more powerful than an atomic bomb, according to several nuclear experts.

Thermonuclear weapons are often colloquially called hydrogen bombs or $H-$bombs. A fusion explosion begins with the detonation of the fission primary stage. Its temperature soars past approximately $100$ million Kelvin, causing it to glow intensely with thermal $X-$radiation.

A fusion bomb is much more powerful than a fission bomb. So, a hydrogen bomb is much more powerful than an atom bomb. Therefore, the assertion is true.

The reason is also true as fusion has to be initiated. But, the reason does not explain the assertion.

Hence, option (B) is correct.