A concert had a decibel rating of 129.5
A vacuum cleaner has a decibel rating of 80
The formula for decibels is as follows.
D = 10 log (i / i0)
i subscript 0 is the lowest sound a human can hear.
How many times louder was the concert than the vacuum cleaner?
Please show how you got to the answer, thanks!
A vacuum cleaner has a decibel rating of 80
The formula for decibels is as follows.
D = 10 log (i / i0)
i subscript 0 is the lowest sound a human can hear.
How many times louder was the concert than the vacuum cleaner?
Please show how you got to the answer, thanks!
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129.5 = 10 log(ic/i0) => ic/i0 = 10^12.95 ......(1)
80 = 10 log(iv/i0) => iv/i0 = 10^8 .....(2)
(1)/(2): ic/iv = 10^4.95 = 89,125 times
80 = 10 log(iv/i0) => iv/i0 = 10^8 .....(2)
(1)/(2): ic/iv = 10^4.95 = 89,125 times