Q. The speed of electromagnetic Wave in vacuum depends upon the source radiation. It
A) Increases as we move from $\gamma - rays$ to radio waves
B) Decreases as we move from $\gamma - rays$ to radio waves
C) Is same for all of them
D) None of the above
Explanation
(c) Speed of Electromagnetic Waves in vacuum
$= \frac{1}{\sqrt{\mu_{0}\varepsilon_{0}}} = costant$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.