Q. Which rays are not the portion of electromagnetic spectrum
A) $X$-rays
B) Microwaves
C) $\alpha$-rays
D) Radio waves
Explanation
The correct answer is Option C: $\alpha$-rays.
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.