Question

Asked Nov 24, 2019

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The volume control on a surround sound amplifier is adjusted so the sound intensity level at the listining position increase from 22 to 66 dB. What is the raiton of the final sound intensity to the original sound intensity?

Step 1

Relation between sound in decibel (dB) and sound intensity is:

Step 2

Write the relation between the intensities at two points. Subtract the decibel intensities at two points in order to find the ratio of sound intensities.

Step 3

Substitute the know va...

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