AIPMT MAINS2012Physics-Electromagnetic Waves
AIPMT MAINS 2012 Physics Wave Properties MCQ Question
Type: MCQ-conceptual-Medium-Class 12
The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to:
A
the speed of light in vacuum
B
reciprocal of speed of light in vacuum
C
the ratio of magnetic permeability to the electric susceptibility of vacuum
D
unity
Correct Answer
Option B
Detailed Explanation
The ratio B/E for an electromagnetic wave is equal to 1/c, where c is the speed of light in vacuum.
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