A plane electromagnetic wave of wavelength $3.0 \mathrm{~m}$ travels in vaccum along the positive $\mathrm{X}$-axis. The electric field of amplitude $300 \mathrm{Vm}^{-1}$ oscillates parallel to the Y-axis. Then the intensity of the wave is $\left(\mu_0=4 \pi \times 10^{-7} \mathrm{Hm}^{-1}, \mathrm{c}=3 \times 10^8 \mathrm{~ms}^{-1}\right)$