A flood light will be covered with filter that transmits red light. The electric field of the emerging beam is represented by a sinusoidal plane wave `E_x=38.8sin(1.2xx10^7z-3.6xx10^(15)t)V//m`. The average intensity of beam in` "watt"//m^2` will be:

A flood light will be covered with filter that transmits red light. Th

1.	A flood light will be covered with filter that transmits red light. The electric field of the emerging beam is represented by a sinusoidal plane wave `E_x=38.8sin(1.2xx10^7z-3.6xx10^(15)t)V//m`. The average intensity of beam in` "watt"//m^2` will be:
Answer» Correct Answer - `2` Average intensity, `I_(av)=1/2 in_0E_0^2xxc` `=((8.85xx10^(-12)xx(38.8)^2xx(3xx10^8))/2) ~~2W//m^2`

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A flood light will be covered with filter that transmits red light. The electric field of the emerging beam is represented by a sinusoidal plane wave `E_x=38.8sin(1.2xx10^7z-3.6xx10^(15)t)V//m`. The average intensity of beam in` "watt"//m^2` will be:

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