Comm Diss 311-page29

# Comm Diss 311-page29 - 2 x 10-9 watts/m 2 f. 5 x 10-13...

This preview shows page 1. Sign up to view the full content.

4 4. Decibels 4.1. Convert each of the following intensity ratios to decibels. a. 2:1 b. 4:1 c. 10:1 d. 16:1 e. 16000:1 f. 68000:1 g. 140000:1 h. 400:1 i. 3600:1 j. 160:1 4.2. Convert each of the following decibel values to intensity ratios. a. 3 dB b. 10 dB c. 16 dB d. 40 dB e. 50 dB f. 80 dB g. 86 dB 4.3. How many dB SPL is a. .00002 watts/m 2 b. 5 x 10 -11 watts/m 2 c. 3.16 x 10 -8 watts/m 2 d. 10 -6 watts/m 2 e.
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2 x 10-9 watts/m 2 f. 5 x 10-13 watts/m 2 4.4. Convert the following pressure ratios to decibels. a. 2:1 b. 18:1 c. 10:1 d. 4000:1 e. 60000:1 f. 90000:1 g. 100:1 4.5. What pressure ratios are equivalent to the following increases in decibels? 1. 6 dB 2. 10 dB 3. 20 dB 4. 26 dB 5. 40 dB 6. 50 dB 7. 75 dB...
View Full Document

## This document was uploaded on 10/31/2011 for the course COM DIS 311 at UMass (Amherst).

Ask a homework question - tutors are online