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ECE · Q141

Electromagnetic Field Theory

Engineering and GATE · ECE · question 141

Q141

The electric field component of a wave in free space is given by E = 50sin(107t + kz) j V/m. Which one of the following is the correct inference that can be drawn from this expression?

The electric field component of a wave in free space is given by E = 50sin(107t + kz) V/m. Which one of the following is the correct inference that can be drawn from this expression?
A.
The wave propagates along y-axis
B.
The wavelength is 188.5 m
Answer
C.
The wave number k = 0.33 rad/m
D.
The wave attenuates as it travels

Answer: Option B

Solution

Answer: Option B
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