Optics Question 281
Question: The electromagnetic waves travel with a velocity
[J & K CET 2002]
Options:
A) Equal to velocity of sound
B) Equal to velocity of light
C) Less than velocity of light
D) None of these
Show Answer
Answer:
Correct Answer: B
Solution:
Velocity of EM waves = $ \frac{1}{\sqrt{{\mu _{0}}{\in _{0}}}}3\times 10^{8}m/s $ =velocity of light