Question

Which of the following statements is true about both nuclear fusion and nuclear fission?

A. They occur in the sun.

B. Heavy atoms are split.

C. Two light nuclei combine.

D. Some mass changes into energy.

Answer 1

The correct answer is A.

B is incorrect because that only applies to nuclear fission.

C is incorrect because it only applies to nuclear fusion.

D is incorrect because energy can be neither created nor destroyed meaning that this statement is physically impossible,

Answer 2

The statement which is true about both nuclear fusion and nuclear fission is Some mass changes into energy.

Hence, Option (D) is correct answer.

What is Nuclear Fusion ?

It is the combination of two or more smaller atoms to create a larger one. Fusion require high temperature and pressure (conditions).

What is Nuclear Fission ?

It is a heavy nucleus which splits up in to form two lighter nuclei.

Now lets check the options one by one:

Option (A): They occur in sun.

In Nuclear fission the energy in the Sun is not due to fission and In Nuclear fusion the energy is generated in the Sun by nuclear fusion.

So it is incorrect option.

Option (B): Heavy atoms are split.

Heavy atoms are split only in nuclear fission not in nuclear fusion.

So it is incorrect option.

Option (C): Two light nuclei combine.

Two or more nuclei combines and then create a larger one occur only in nuclear fusion not in nuclear fission.

So it is incorrect option.

Option (D): Some mass changes into energy.

In nuclear fission and nuclear fusion the missing or leftover mass has been converted in to the energy this is according to Einstein's equation.

So it is correct option.

Thus from the above conclusion we can say that The statement which is true about both nuclear fusion and nuclear fission is Some mass changes into energy.

Hence, Option (D) is correct answer.

Learn more about the Nuclear Fission and Nuclear Fusion here: https://brainly.com/question/14019172

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