No idea - maybe it is different but i'm sure it is the same.
2007-12-12 02:12:59 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Physics
I suppose you refer to speed of sound in air.
Speed of sound in air is directly prop to:
sqrt(pressure/density)
Degree of illumination has no effect on pressure & density, so no change in speed.
But is the question really about day time/night time?
Assume pressure remains constant.
At night the temp falls.
Air contracts.
Density rises.
(pressure/density ) reduced
so speed reduced.
2007-12-12 08:30:17 · answer #1 · answered by Red Campion 2 · 0⤊ 0⤋
There surely must be a eentsy teensy little difference due to light waves and inferred and all that, but the ammonts we are talking about would be immesurably small, and of no significance.
There is less ambient sound at night, so sound travels further, at the same speed... maybe with better clarity.
2007-12-12 02:23:02 · answer #2 · answered by mittobridges@btinternet.com 4 · 0⤊ 1⤋
Most likely. A rough speed of sound in mps equation is v = 331.3 + .606*T in dry air. [See source.] T is the ambient temperature in deg C. As night time air temperature is typically less than day time temperature, all other things equal, the speed of sound would be less at night than in the daylight. But of course, there are always exceptions to the rule and night times can be hotter than a two dollar pistol at times. BTW. Although the density would be higher in the cooler nights, it is not high enough to overshadow the effects of temperature. So the speed of sound is less at night, because of the lower temperature, despite the greater density. [See source.]
2016-05-23 05:13:06 · answer #3 · answered by ? 3 · 0⤊ 0⤋
It is the same, there is no difference. Sound is depedent upon material it travels through and the temperature. Sound may appear to travel faster at night time becasue it is usually colder outside and vice versa.
2007-12-12 02:19:06 · answer #4 · answered by Brian 6 · 5⤊ 0⤋
Nope, same speed though in real life sound carries further at night as there is less sound pollution crashing around.
Atmosphere also affects sound.
Hope this helps?
2007-12-12 02:17:50 · answer #5 · answered by Monkster 3 · 5⤊ 0⤋
light or dark - no difference!
Night or Daylight (in the open) considerable difference due to the variation in air density.
2007-12-14 02:06:18 · answer #6 · answered by Andy A 3 · 0⤊ 0⤋
No difference.
Sound is compression of air where as light waves are photons travelling through it.
2007-12-12 02:18:44 · answer #7 · answered by Marky 6 · 3⤊ 1⤋
Yep it travels further in the dark as when it's light, the light waves interfere with the sound waves
2007-12-12 02:17:02 · answer #8 · answered by fancypants 4 · 0⤊ 6⤋
Strangely, Yes!
p.s That is a good question. You must be an interesting guy or gal!!!
2007-12-12 02:17:43 · answer #9 · answered by joe m 3 · 1⤊ 2⤋
its the same
2007-12-12 02:22:19 · answer #10 · answered by The Lost Elf 4 · 1⤊ 0⤋