A lamp emits monochromatic green light uniformly in all directions. The lamp is \( 3 \% \) effic...

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A lamp emits monochromatic green light uniformly in all directions. The lamp is \( 3 \% \) efficient in converting electrical power to electromagnetic waves and consumes \( 100 \mathrm{~W} \) of power. The amplitude of the electric field associated with the electromagnetic radiation at a distance of \( 10 \mathrm{~m} \) from tha lamp will be
(a) \( 1.34 \mathrm{~V} / \mathrm{m}^{2} \)
(b) \( 2.68 \mathrm{~V} / \mathrm{m} \)
(c) \( 5.36 \mathrm{~V} / \mathrm{m} \)
(d) \( 9.37 \mathrm{~V} / \mathrm{m} \)
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