Physics - EM Waves Question with Solution | TestHub

Suppose that intensity of a laser is$\left(\frac{315}{\pi }\right) \mathrm{W} {\mathrm{m}}^{-2}.$The rms electric field, in units of$\mathrm{V} {\mathrm{m}}^{-1}$associated with this source is close to the nearest integer is$-\left({\epsilon }_0=8.86\times {10}^{-12} {\mathrm{C}}^2 \mathrm{N} {\mathrm{m}}^{-2}; \mathrm{c}=3\times {10}^8 \mathrm{m} {\mathrm{s}}^{-1}\right)$