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The intensity of sound from a radio at a distance of 2 metres from its speaker is \( 1 \times 10^{-2} \mu \mathrm{W} / \mathrm{m}^{2} \). The intensity at a
\( \mathrm{P} \) distance of 10 meters would be
[CPMT 2005]
W
(a) \( 0.2 \times 10^{-2} \mu \mathrm{W} / \mathrm{m}^{2} \)
(b) \( 1 \times 10^{-2} \mu \mathrm{W} / \mathrm{m}^{2} \)
(c) \( 4 \times 10^{-4} \mu \mathrm{W} / \mathrm{m}^{2} \)
(d) \( 5 \times 10^{-2} \mu \mathrm{W} / \mathrm{m}^{2} \)
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