Q 2407145988.     A red LED emits light at `0.1` watt uniformally around it. The amplitude of the electric field of the light at a distance of 1m from the diode is

BCECE 2016 Stage 1
A

`6` V/m

B

`2.45` V/m

C

`5.48` V/m

D

`1.73` V/m

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