Q. What is the difference between soft and hard $X$-rays
A) Velocity
B) Intensity
C) Frequency
D) Polarization
Explanation
(c) Frequency of hard $X$-rays is greater than that of soft $X$-rays
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.