$$ \begin{aligned} & E=B C \Rightarrow 60=B \times 3 \times 10^8 \\ & \Rightarrow B=2 \times 10^{-7} \end{aligned} $$ Also $\mathrm{C}=\mathrm{f} \lambda$ $$ \begin{aligned} & \Rightarrow 3 \times 10^8=\mathrm{f} \times 4 \times 10^{-3} \\ & \Rightarrow \mathrm{f}=\frac{3}{4} \times 10^{11} \\ & \Rightarrow \omega=2 \pi \mathrm{f}=\frac{3}{4} \times 2 \pi \times 10^{11} \\ & \Rightarrow \omega=\frac{\pi}{2} \times 10^3 \mathrm{C} \end{aligned} $$ ⇒ Electric field ⇒ y direction Propagation ⇒ x direction Magnetic field ⇒ z-direction