Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Hard-Class 12
Given a plane electromagnetic wave with electric field E = 6.3 ˆ j V/m traveling in free space along the x-direction, what is the direction of the magnetic field B at this point?
A
Along the z-direction
B
Along the x-direction
C
Along the y-direction
D
Opposite to the z-direction
Correct Answer
Option A
Detailed Explanation
The magnetic field B is perpendicular to both the direction of the electric field E and the direction of wave propagation. Since the wave is along the x-direction and E is along the y-direction, B must be along the z-direction.
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