Hydrogen bomb is prepared on the principle of nuclear fission. Select the correct answer using the codes given below. Codes:

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Only 1. As its name implies, radioactivity is the act of emitting radiation spontaneously. • Radioactivity is a purely nuclear phenomenon. The nucleus of a radioactive substance is unstable and such an unstable nucleus undergoes spontaneous breakdown (disintegration). • The second statement is incorrect. The hydrogen bomb is not prepared on the principle of nuclear fission. Rather, the hydrogen bomb is based on the principle of uncontrollable nuclear fusion. Nuclear fusion is the process where the nuclei of two light atoms combine to form a new nucleus.

Hydrogen bomb is prepared on the principle of nuclear fission. Select the correct answer using the codes given below. Codes:

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