NEET Physics Maxwell's Equations MCQ Question
In an electromagnetic wave propagating in vacuum, if the electric field amplitude E_0 is doubled, what happens to the magnetic field amplitude B_0?
B_0 is halved
B_0 remains unchanged
B_0 is doubled
B_0 is quadrupled
Correct Answer
Detailed Explanation
According to Maxwell's equations, the amplitude of the magnetic field B_0 is directly proportional to the amplitude of the electric field E_0 divided by the speed of light c. Thus, if E_0 is doubled, B_0 is also doubled.
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