All Questions
4
questions
2
votes
0
answers
85
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What are the Fresnel formulas for acoustics?
While it's not too difficult to derive Snell's Law for acoustics e.g. from Huygen's principle like for light, I find surprisingly little resources on an equivalent to Fresnel formulas linking the ...
- 6,820
3
votes
1
answer
90
views
Reflection versus Refraction with Waves
I am a middle school science teacher and we teach a unit on waves (mostly about sound) My students struggle to identify whether a wave (usually sound) is refracting or reflecting across many different ...
- 33
0
votes
1
answer
191
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Reflection of sound wave passing through gas to solid and through solid to gas
Why following are true in both cases?.
1- Ultrasound passing through a metal block(solid medium) will not pass through a cavity (air medium) inside the block.
I got some explanation as speed of sound ...
- 101
0
votes
2
answers
299
views
Parabolic speaker dish diameter
I am trying to design a parabolic speaker to allow an audio signal to be emitted in only a single direction. For a single acoustic tone with wavelength $w$, what should the diameter of the reflector ...
- 155