A sinusoidal electromagnetic wave has intensity I = 100 W/m^2 and an electric field amplitude E. What is the electric field amplitude of a 50 W/m^2 electromagnetic wave with the same wavelength? (a) 4E
(b) 2E (c) 2√2E (d) √2E (e) E/(2√2) (f) E/√2 (g) E/4 (h) E/2
