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A plane electromagnetic wave propagating in the x-direction has wavelength of 60 mm. The electric field is in the y-direction and its maximum magnitude is 33 V/m-1. The equation for the electric field as function of x and r is

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a
11 sin πt-x/c
b
33 sin π×1011t-x/c
c
33 sin πt-x/c
d
11 sin π×1011t-x/c

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detailed solution

Correct option is B

ω=2πv2πcλ=2π×3×1086×10-3=π×1011rad/sThe equation for the electric field, along y-axis in the electromagnetic wave isEy=E0sinωt-xc=33 sinπ×1011t-x/c

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