The intensity of sound from a radio at a distance of 2 metres from its speaker is \[1\times {{0}^{-2}}\mu \ W/{{m}^{2}}.\] The intensity at a distance of 10 meters would be [CPMT 2005]

• A.            \[0.2\times {{10}^{-2}}\mu \ W/{{m}^{2}}\]               
• B.            \[1\times {{10}^{-2}}\mu \ W/{{m}^{2}}\]
• C.            \[4\times {{10}^{-4}}\mu \ W/{{m}^{2}}\]                  
• D.            \[5\times {{10}^{-2}}\mu \ W/{{m}^{2}}\]