Solution-How many birds are there on the tree

How many birds are there on the tree

Reference no: EM131834215

One bird can sing with the sound intensity level of 5 dB measured by the listener near the tree. Suppose there are many birds on the tree which all sing in phase with the same amplitude and frequency. The same listener measures the sound intensity level 25 dB at the same position as before. How many birds are there on the tree?

Reference no: EM131834215

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How many birds are there on the tree

Reference no: EM131834215

Reference no: EM131834215

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