Home › UP Board Class 12 › Physics › Modern Physics › Radioactivity is a decay undergone by a nucleus …
Radioactivity is a decay undergone by a nucleus that is:
AUnmoving
BUnmixed
CUnstable
DUnusual
Answer & Solution
Correct answer: C. Unstable
1. Stable nuclei do not decay.
2. The process is called radioactive decay.
3. The nucleus is unstable.
_Source: NCERT Class 12 Physics, Ch 13 'Nuclei'_
Related questions
In gamma decay, what is emitted?A positron has the same mass as an electron but a charge that is:In beta decay, which particles may be emitted?In alpha decay, which nucleus is emitted?How many types of radioactive decay occur in nature?Becquerel's emission penetrated black paper and:Becquerel made his discovery while studying:Who discovered radioactivity, in 1896?