Nuclear Processes — Test

Question 12 • Physics in the Universe

How is mass-energy equivalence demonstrated in the Sun?

Answer

Hydrogen nuclei form from smaller nuclei by absorbing a large amount of energy and converting it into a small amount of mass.

Hydrogen nuclei fuse to form a larger nucleus by absorbing a large amount of energy and converting it into a small amount of mass.

Hydrogen nuclei fuse to form a larger nucleus, and a small amount of mass is converted into energy.

Hydrogen nuclei form from smaller nuclei, and a small amount of mass is converted into energy.

Explanation

In the Sun, hydrogen nuclei fuse to form a larger nucleus. The resulting nucleus has slightly less mass than the original nuclei combined; that missing mass is converted into energy according to E = mc². Therefore, the correct choice is C: hydrogen nuclei fuse, and a small amount of mass is converted into energy.

AI-written and checked against the verified answer.

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