A plane electromagnetic wave travelling along the X-direction has a wavelength of 3 mm…
Physics · NEET · NTA Exams — Electromagnetic Waves
A plane electromagnetic wave travelling along the X-direction has a wavelength of 3 mm The variation in the electric field occurs in the y-direction with an amplitude 66 Vm−1. The equations for the electric and magnetic fields as a function of x and t are respectively.
- Ey = 33cosp × 1011 \(\left(t-\frac{x}{c}\right)\)
Bz = 1.1 × 10–1 cosp × 1011 \(\left(t-\frac{x}{c}\right)\) - Ey = 11cosp × 1011 \(\left(t-\frac{x}{c}\right)\)
Bz = 11 × 10–7 cos2p × 1011 \(\left(t-\frac{x}{c}\right)\) - Ey = 33cosp × 1011 \(\left(t-\frac{x}{c}\right)\)
Bz = 11 × 10–7 cosp × 1011 \(\left(t-\frac{x}{c}\right)\) - Ey = 66cos2p × 1011 \(\left(t-\frac{x}{c}\right)\)
Bz = 2.2 × 10–7 cos2p × 1011 \(\left(t-\frac{x}{c}\right)\)
Answer
(C) E y = 33cos p × 10 11 (t- x c ) B z = 11 × 10 –7 cos p × 10 11 (t- x c )
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