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pogonyaev
3 years ago
10

In a pig caller can produce a sound intensity level of 107 dB. How many pig callers would be needed to generate an intensity lev

el of 120 dB, assuming each caller can individually produce a sound intensity level of 107 dB
Physics
1 answer:
myrzilka [38]3 years ago
6 0

Answer:

20 pig callers

Explanation:

Given that:

A pig caller produced intensity level of  a sound = 107 dB

To find how many pig callers required to generate an intensity level of 120 dB;

we have:

120 dB - 107 dB = 13 dB

Taking the logarithm function;

10 \ log \bigg(\dfrac{I}{I_o} \bigg) = 13 \ dB

where;

I_o = initial intensity

log \bigg(\dfrac{I}{I_o} \bigg) = 1.3

\dfrac{I}{I_o}=  10^{1.3 }

I = 19.95I_o

I ≅ 20 pig callers

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