When a sound wave or other waves pass from air to a different medium... will the frequency change?

Question

please explain

Answer 1

No. The wave's speed and its wavelength will change, but the frequency will stay the same.

The frequency is sort of like the number of "bumps" per second that pass by a given point. So think about this: If 1000 bumps per second are going from the air into (say) water, then if you put on your scuba gear and measure the wave as it travels through the water, then you must find that 1000 bumps per second are still going past. If this were not so (for example if you only measured 800 bumps per second in the water), then it must mean that the other 200 bumps must have just disappeared, which doesn't happen.

Another analogy is this: Say you're counting the number of cars per minute that go past a certain point on the highway. (And say there are no on-ramps or exits). You count 20 cars per minute on a certain stretch. Then, say you go to a different stretch, where the speed limit is slower (say because of road construction). Even though the cars are going slower, you will STILL count 20 per minute going past. If the count were less, it would mean that some cars were magically "disappearing" between point A and point B. Or if the count were more, it would mean that some cars were magically appearing out of nowhere.

Answer 2

according to danger we could only get a huge chook to end international WORMING, ha ha, in basic terms joking. to respond to your question suitable, first you should understand i understand F all approximately physics and stuff, yet i'd think of that IF what you advise is possible, the sound generator would must be larger than 150m, sound dissipates because it travels with the aid of the air, and if we've been to end the photons we would choose to do it interior the severe ecosystem and the sound waves would not attain the peak mandatory, regardless of in the event that they did it might would not be good sufficient to redirect the photons, additionally, truly some the suns potential interior the sort of sunshine is contemplated by using the snow on the poles and with the poles melting much less gentle is being contemplated which might additionally make a contribution to GW, and your theory would not help that, there is likewise the possibility that GW is in basic terms a organic cycle of the planet, wherein case struggling with it must be much extra unfavourable than permitting it to ensue(i think of it truly is organic be we a rushing up the technique) all that suggested i'd choose to assert, kudos to you, a minimum of you attempt to think of of information on the thank you to DO some thing, your thinking exterior the field, and if in basic terms a million in a a hundred techniques pan out, it is nonetheless one extra way we could help ourselves and different animals and flowers that share this planet, as i suggested i do no longer understand something approximately it, no remember if it is conceivable or practicable, yet save up the forged ideas, we choose extra human beings doing what your doing.

Answer 3

if the medium is higher the air will pass quicker cuz the atoms are more apropriate to each other and the wave will pass quicker creating a higher frequency.....if the medium is lower the wave will pass slower and the frequency will be lower....

Answer 4

SINCE WAVES CHANGE, FREQUENCY ALSO CHANGES.