- #1

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## Homework Statement

Two sounds differ in sound level by 2.80 dB. By what factor is the one intensity greater than the other?

## Homework Equations

## The Attempt at a Solution

Is the equation

[tex]B[/tex] = 10dB log(I/Io)

relevant?

- Thread starter Oijl
- Start date

- #1

- 114

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Two sounds differ in sound level by 2.80 dB. By what factor is the one intensity greater than the other?

Is the equation

[tex]B[/tex] = 10dB log(I/Io)

relevant?

- #2

rl.bhat

Homework Helper

- 4,433

- 7

Bdb = 10log(I/Io)

Now let B1 = 10log(I1/Io) and

B2 = 10log(I2/Io)

Take the difference and find the ratio of I1/I2.

- #3

danago

Gold Member

- 1,122

- 4

B = 10 log (I

B+2.8 = 10 log (I

See if you can use those

EDIT: rl.bhat beat me to it :P

- #4

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I'm sorry, but the algebra is confusing me. Could you show the first few steps, please?

- #5

rl.bhat

Homework Helper

- 4,433

- 7

B2 = 10log(I2/Io)

B1 -B2 = 10[log(I1/Io) - log(I2/Io)]

Use laws of logarithm to further simplification.

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