A magnetic field in a plane electromagnetic wave is given by  BY=3×10−7sin[1.5x+5×108t]T. What is the wavelength of electromagnetic wave?

Given equation is  BY=3×10−7sin[1.5x+5×108t]TComparing the given equation with the equation of  B=B0sin(2πxλ+2πtT)   2πλ=1.5 ⇒λ=2π1.5         ∴ λ=21.5×227=4410.5=4.19m