When a Hydrogen Bomb Explodes, Hydrogen Fuses to Form Helium

question 72

Multiple Choice

When a hydrogen bomb explodes, hydrogen fuses to form helium. According to Einstein's mass- energy equivalence [that is, according to E=mc²], does this result in an change in the total mass of the material?

• A) Yes, the mass increases, but by such a small amount that it would be impossible to measure it.
• B) Yes, the mass decreases, and by a measurable amount.
• C) Yes, the mass increases, and by a measurable amount.
• D) Yes, the mass decreases, but by such a small amount that it would be impossible to measure it.
• E) No, the mass remains exactly the same.

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