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
from the lamp will nearly
(1) 1.34 V/m
(2) 2.68 V/m
(3) 4.02 V/m
(4) 5.36 V/m
(2014)
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