A plane electromagnetic wave of frequency 100 MHz is traveling in vacuum along the x-direction. At a particular point in space and time, B = 2.0 × 10?? k? T. (where, k? is unit vector along z-direction) What is E at this point? (speed of light c = 3 x 10? m/s)
A plane electromagnetic wave of frequency 100 MHz is traveling in vacuum along the x-direction. At a particular point in space and time, B = 2.0 × 10?? k? T. (where, k? is unit vector along z-direction) What is E at this point? (speed of light c = 3 x 10? m/s)
Option 1 -
0.6 ĵ V/m
Option 2 -
6.0 ĵ V/m
Option 3 -
0.6 k̂ V/m
Option 4 -
6.0 k̂ V/m
Asked by Shiksha User
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1 Answer
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Correct Option - 4
Detailed Solution:Direction of E is perpendicular to the direction of propagation and that of B.
E = cB = 3 × 10? × 2 × 10? = 6 V/m
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