Q. Radioactive substances do not emit
A) Electron
B) Helium nucleus
C) Positron
D) Proton
Explanation
The correct answer is Option D: Proton.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.