STANDARDPhysics-Electromagnetic Waves
STANDARD Physics Wave Propagation Direction MCQ Question
Type: MCQ-conceptual-Medium-Class 12
An electromagnetic wave propagating along north has its electric field vector upwards. Its magnetic field vector point towards
A
north
B
east
C
west
D
downwards
Correct Answer
Option B
Detailed Explanation
The direction of the magnetic field vector is perpendicular to both the direction of wave propagation and the electric field vector. Using the right-hand rule, if the wave is moving north and the electric field is upwards, the magnetic field must point east.
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