Can light emit sound?
468327
light cannot directly produce sound, but audible sound can be produced as a result of the rapid heating and expansion of the surrounding air of a powerful light beam.\nan example of this is thunder and lightning.
905686
In radio.  Not real noise that you can hear, as northern lights are electrophysical interaction between the upper atmosphere and the solar wind, and the atoms there get ionized.\nThis activity releases radio waves that can impede radio communications, and the static can be heard on a radio.  But you do need a radio to hear that noise.
124066
Anything that isn't flat black can be said to illuminate in the sense that it returns some of the incident light.\nSpecial forms of illumination include light "storage" and fluorescence.\n\nLight storing materials enter an excited state when hit by light and gradually dissipate the excitation as light emission; cadmium sulfide is an example.\n(Later correction: calcium, not cadmium, sulfide.\n\nFluorescence, e.g. fluorescent dyes and the coating on the inside of fluorescent lamps, are excited by incident light (typically ultraviolet) and immediately release the energy as visible light.\n\nLater: Elements, yes.  Think of rare-gas lasers (argon, xenon).
681287
OK-Simple and understandable.\nLight is actually small quanta of energy called photons.\nWhen these photons are propagated or travel through a medium, they are only allowed to travel as fast as the medium will allow.\nHydrogen will only let light travel at a certain speed, and that speed is always the same for light travelling through hydrogen.\nLight actually has a different constant for each medium that it is propagated through.\nSo regardless of how fast the light source is travelling, the photons will only propagate at a set speed.\n\nThe closest example would be sound waves. They can only travel at a certain speed as well within a given medium. Once the source of the sound catches up to and passes the sound, it creates a sonic boom.\nSo again, regardless of the speed of the jet, the sound it creates can only go so fast.\n\nThe constancy of the speed of light actually applies to the speed within the medium through which it is being transferred.\n\n\nHope this helps
614206
Radio has to do with sound waves and LASER has to do with light.  I suppose you could cobble up something using both technologies, but what is the point.  I mean fibre optics and radio signals have little in common other they can be used to transfer information.
647307
Try the sonometer or the resonance experiment
680474
People say light has no mass, but that's nonsense.  There are light particles!  If something has particles, it has mass - even if we can't yet measure it!\n\nSo actually, the light probably DOES create a sonic boom.  The problem is probably that the sound is in proportion to the object.  Light particles are incredibly small, so - even if they were dense enough to create a shockwave in the air, the sound would just be a tiny (boom) instead of a HUGE BOOOOOOOM!  So maybe there is a sonic boom, but it's just too quiet to notice...
441629
Boy, you are really time-constrained!  What kind of light?  Edison did an experiment on sending sound over light waves, but was limited to visual light, in air (not laser light, in fiber optics like we use today.)  What equipment have you?\nSuggestions, without knowing much:  Send a beam of light as Morse Code and determine the maximum distances based on different times of day, weather conditions, strength of light beam, type of light beam, acuteness of receiver's eyes.  \n\nOr better yet if you are a computer geek  :), do it with a photo cell as the receiver and send the signal to a computer for analysis and conversion into text.\n\nGood Luck!  Let me know your results!
176518
Light bulb uses light waves.
1005278
Yes, light travels faster than sound. You can tell from several \nexamples. The best would probably be that of lightning and thunder. The next \ntime during a storm, if you notice when lightning flashes across the sky and \nwhen you hear thunder, you will find that it is always the lightning that \nflashes before the thunder. This is because lightning (i.e. light) travels \nfaster than thunder (i.e. sound), and reaches you faster, so that you see the \nlightning before you hear the thunder. In fact, light is enormously faster than \nsound. Light travels at 300,000,000 metres per second (i.e. 300 million metres \nper second), while poor old sound travels only at 330 metres per second.
19369
Yes but not with so few details. You need to start with the obvious:\nTry some different speakers, make sure its not muted in windows etc
777780
Through your speakers. You have to have an Audio Card and a Speaker. Once you play a Audio / Video File, you should hear the sounds through the speakers if its on.\n\nBYE
103290
No. Sound is a waveform of energy that travels from particle to particle. When there's no particles the wave stops. Kind of like waves of the sea don't continue on land.\n\nBut - if you have a planet with atmosphere that's thick enough you'd get sound.
77955
a signal to a device that makes a noise
767277
Put a piece of tape over the light
311007
YES\n\nSince sound waves are mechanical waves they are influenced by the medium in which they travel. But electromagnetic waves such as light and radio waves remain unafftected.
420399
Light Amplified Stimulated Emission Radiation