A lamp emits monochromatic green light uniformly in all direction. The lamp is 5% effiecient in converting electrical power to electromagnetic waves and cosumes 100W of power. What is the amplitude of electric field associated with the electromagnetic radiation at a distance of 4m from the lamp?

A lamp emits monochromatic green light uniformly in all directions. The lamp is 3% efficient in converting electrical power to electromagnetic waves and consumes 100 W of power. The amplitude of the electric field associated with the electromagnetic radiation at a distance of 5 m from the lamp will be:

A lamp emits monochromatic green light uniformly in all directions. The lamp is 3% efficient in converting electrical power to electromagnetic waves and consumes 100 W of power. The amplitude of the electric field associated with the electromagnetic. radiation at a distance of 10 m from the lamp will be

Amplitude of electric field of a plane electromagnetic wave is 48 V. m^(-1) . What is the amplitude of the magnetic field of the wave ?

A mercury lamp is radiating monochromatic light of power 10W.The peak value of electric field strength at a distance of 5m from the lamp is nearly

A lamp radiates power P_(0) uniformly in all directions, the amplitude of elctric field strength E_(0) at a distance r from it is