Wavelengths of lowest and highest audible frequencies

AI Thread Summary
The discussion focuses on calculating the wavelengths of the lowest and highest audible frequencies for humans, which range from 20 Hz to 20 kHz, using the speed of sound at 342 m/s. The formula used is v = λf, where λ represents wavelength. For the lowest frequency of 20 Hz, the calculated wavelength is approximately 17.1 meters. Participants confirm that 20 kHz is equivalent to 20,000 Hz, prompting further calculations. The conversation emphasizes understanding both ends of the audible frequency spectrum.
Lyphta
Messages
11
Reaction score
0

Homework Statement


What are the wavelengths in air of the lowest and highest audible frequencies if te range of human hearing is 20 Hz to 20 kHz and the sped of sound is 342 m/s?


Homework Equations


v= \lambdaf

The Attempt at a Solution


v= \lambdaf
342 = 20 Hz \lambda
\lambda = 17.1

Am I supposed to also do 20 kHz? Would 20 kHz be equal to 20,000?
 
Physics news on Phys.org
Would 20 kHz be equal to 20,000?
Yes, it would be equal to 20,000 Hz.
 

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

How to solve this sound problem (minimum sampling rate required)
Replies
3
Views
2K
Understanding MIT's applet on sound with Fourier coefficients
Replies
3
Views
1K
Frequency of Reflected Underwater Sound Wave
Replies
2
Views
2K
Find two lowest frequencies standing wave
Replies
5
Views
6K
Highest Frequency emitted by bremsstrahlung
Replies
7
Views
1K
Wavelength of the sounds at zero degrees
Replies
7
Views
6K
What is the correct frequency for a 20 cm pipe with open and closed ends?
Replies
1
Views
1K
Resonant Lengths in open air column question
Replies
6
Views
3K
Violin frequencies and harmonics
Replies
2
Views
4K
Destructive interference and constructive interference
Replies
3
Views
3K

Hot Threads

Recent Insights

Back
Top