The magnetic field in a plane electromagnetic wave is given by,

B_{y} = 2 × 10^{–7} sin(π × 10^{3}x + 3π × 10^{11}t)T

Calculate the wavelength.

(1) π × 10^{–3} m

(2) π × 10^{3} m

(3) 2 × 10^{–3} m

(4) 2 × 10^{3} m

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