A laser beam has intensity of 4.0 × 10^14 W / m^2. The amplitude of magnetic field associated with beam is ____ T. (Take ε_o =8.85 × 10^-12 C^2 /…

A laser beam has intensity of $\displaystyle 4.0 \times 10^{14} \mathrm{~W} / \mathrm{m}^2$. The amplitude of magnetic field associated with beam is $\displaystyle \_\_\_\_$ T. (Take $\displaystyle \epsilon_{\mathrm{o}}=8.85 \times 10^{-12} \mathrm{C}^2 / \mathrm{Nm}^2$ and $\displaystyle \mathrm{c}=3 \times 10^8 \mathrm{~m} / \mathrm{s}$ )