Friday, February 26, 2010

Can someone explain 2 me why is it that when it rains sound doesn't travel as faraway as it does on a clear da

I noticed this because it was raining, obviously. and some kid was blowing up M80's 2 blocks away (150 -200 yds.) and it took a bit longer for the noise of the blast to reach me, than on a clear day.Can someone explain 2 me why is it that when it rains sound doesn't travel as faraway as it does on a clear da
I would think that it would have to do with the sound waves being blocked by the rain droplets. I'm thinking that sound waves travel slower in water so every time the waves hit a rain droplet it would slow it down as the wave navigated through it.Can someone explain 2 me why is it that when it rains sound doesn't travel as faraway as it does on a clear da
The velocity of sound is given by v =鈭歒p/d , where 'v' is the velocity and 'd' is the density.Hence it can be seen that the velocity of sound is inversely proportional to the density of air.So the velocity increases with decrease in the density of air.Now moist air is lighter than dry air and hence has less density.So,the sound should travel faster on a rainy or foggy day.If what you say is correct,it may be due to the suppression of the received sound by the sound that the rain makes while falling and after falling on the ground.
Well think about it. Rain acts like a partition that the sound waves must pass through. No clouds, less resistance....
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