Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Easy-Class 12
A plane electromagnetic wave travels in free space with a frequency of 50 MHz. If at a certain point in space, the electric field E = 3.0 ˆ j V/m, what is the magnitude of the magnetic field B at this point?
A
0 × 10^-8 T
B
0 × 10^-8 T
C
0 × 10^-8 T
D
0 × 10^-8 T
Correct Answer
Option A
Detailed Explanation
Using the relationship B = E/c, where c = 3 × 10^8 m/s, and E = 3.0 V/m, we calculate B = 1.0 × 10^-8 T.
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