Optics Question 325

Question: Electromagnetic waves travel in a medium which has relative permeability 1.3 and relative permittivity 2.14. Then the speed of the electromagnetic wave in the medium will be

[MH CET 2003]

Options:

A) 13.6×106m/s

B) 1.8×102m/s

C) 3.6×108m/s

D) 1.8×108m/s

Show Answer

Answer:

Correct Answer: D

Solution:

v=cμrεr=3×1081.3×2.14=1.8×108m/sec



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