Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Nuclear Physics Radioactivity
Which of the following particle is emitted by a radioactive element during the beta decay?
1
Electron and positron
2
Electron and proton
3
Electron only
4
More than one of the above.
5
None of the above