Sound Intensity Level and Hearing Problem

AI Thread Summary
The discussion focuses on calculating sound intensity levels using the inverse square law. One participant suggests using this law to determine sound intensity at 2 meters based on measurements taken at 3 meters, rather than calculating the power of the sound source. The formula provided for this calculation is I2m/I3m = 3^2/2^2. The exchange highlights the importance of understanding sound intensity and its relation to distance. Overall, the conversation emphasizes practical methods for sound intensity calculations.
Dr. S
Messages
13
Reaction score
0
Thank you for the help!
 
Last edited:
Physics news on Phys.org
Could really use some input!
 
Dr. S said:
Could really use some input!

It's correct, but I would've just used the inverse square law to work out the sound intensity at 2m from the one at 3m instead of calculating the power of the source.
 
Curious3141 said:
It's correct, but I would've just used the inverse square law to work out the sound intensity at 2m from the one at 3m instead of calculating the power of the source.

Inverse square law? How I would I go about using that here?

Thank you, by the way. :)
 
Dr. S said:
Inverse square law? How I would I go about using that here?

Thank you, by the way. :)

\frac{I_{2m}}{I_{3m}} = \frac{3^2}{2^2}.

And you're welcome. :smile:
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Same frequency sounding different
Replies
23
Views
3K
Audio interference of sound waves from two speakers
Replies
19
Views
4K
Waves: Calculate the sound intensity from two speakers
Replies
3
Views
3K
Sound Intensity (Level) - Hearing Aid
Replies
5
Views
2K
Sound intensities in hearing aids
Replies
2
Views
1K
Max velocity of a vibrating loud speaker membrane given sound intensity
Replies
4
Views
2K
Ratio of Intensities of 2 sounds
Replies
5
Views
2K
Calculating τ by knowing I is proportional to A^2
Replies
8
Views
2K
Graphing Power vs Polarizer Angle using Intensity
Replies
32
Views
2K
Total sound intensity from sources
Replies
11
Views
3K

Hot Threads

Recent Insights

Back
Top