A red LED emits light at 0.1 watt uniformly around it. The amplitude of the electric field of the light at a distance of 1 m from the diode
As we learned in
LED (Light-emitting diode) -
It gives out light radiation when forward biased.
- wherein
LED's are made of GaAsP, Gap etc .
(Require low voltage, long life )
Amplitude I = E0
or
Study 40% syllabus and score up to 100% marks in JEE