Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Last revision Both sides next revision
phy131studiof15:lectures:chapter18 [2015/11/09 08:42]
mdawber [Reflection and transmission]
phy131studiof15:lectures:chapter18 [2015/11/09 08:51]
mdawber [Interference between two speakers]
Line 45: Line 45:
  
  
-If the waves propagate from the source in all 3 dimensions then we need to take in to account that  as we showed in [[phy141:lectures:27&#​energy_in_a_wave|lecture 27]], $A\propto\frac{1}{r}$. To determine [[phy141:​lectures:​29&#​loudness_and_decibels|perceived loudness]] we need to remember that it depends logarithmically on intensity. I have factored these considerations in the following calculations I performed in Maple. The patterns are for two speakers separated by 1m.+If the waves propagate from the source in all 3 dimensions then we need to take in to account that  as we showed in [[phy131studiof15:lectures:chapter17|chapter 17]], $A\propto\frac{1}{r}$. To determine [[phy141:​lectures:​29&#​loudness_and_decibels|perceived loudness]] we need to remember that it depends logarithmically on intensity. I have factored these considerations in the following calculations I performed in Maple. The patterns are for two speakers separated by 1m.
  
 {{speakerinteference.png}}\\ {{speakerinteference.png}}\\
phy131studiof15/lectures/chapter18.txt ยท Last modified: 2015/11/09 08:51 by mdawber
CC Attribution-Noncommercial-Share Alike 3.0 Unported
Driven by DokuWiki