1.The amplitude of the electric field in a parallel light beam of intensity 4 W/m24\,\text{W/m}^24W/m2 is:a.35.5 N/C35.5\,\text{N/C}35.5N/Cb.45.5 N/C45.5\,\text{N/C}45.5N/Cc.49.5 N/C49.5\,\text{N/C}49.5N/Cd.54.8 N/C54.8\,\text{N/C}54.8N/CLogin to continueOnly logged in users canattempt or see the solution.
