Talk:Wavelength

How Do You Find Wavelength?

Redirect change

I suggest that de Broglie wavelength redirects to de Broglie hypothesis, not here. It makes more sense, and de Broglie hypothesis has a much better description. Perhaps a rewrite is then needed of that section of this page to reflect that. Any objections?
--Blinken 11:45, 27 Apr 2005 (UTC)

I can't believe it redirects here instead of de Broglie hypothesis already. I went ahead and changed it, figuring I should be bold. In light of that, the section in here about the de Broglie wavelength probably does need to be rewritten and shortened a bit. --Laura Scudder | Talk 19:36, 27 Apr 2005 (UTC)

Went ahead and moved it over. --Blinken 02:19, 4 May 2005 (UTC)

Lambda = C / f

Would it be worth using the more general formula $\lambda =v/f$ here, instead of $\lambda =c/f$? Or perhaps mentioning that the formula can be used with other waves by replacing the speed of light with the speed of the individual wave? --Defragged 13:23, 13 Jun 2005 (UTC)

Yes -- Tim Starling 04:11, Jun 14, 2005 (UTC)

relationship between Wavelength and the distance covered by the waves

Hey All !

is there any difference between the Wavelength and the distance covered by a MICOR WAVE when radiated through an anteena. Bascially i am confuse, what difference a wavelength make in the tranmisstion of a wave ? like do Higher Wavelength waves need less power to radiate and vice vers. Also what is the maximum range a micro-wave can travel or it can travell to unlimited distance (increasing the radiation in the area as a drawback ?) . I would be grateful if someone clear this up.

regards, Shakeel Ahmad

In a vacuum, electromagnetic radiation of any wavelength can travel for an unlimited distance, with intensity decreasing with distance due to the larger area as you suggest. When travelling through a medium, some will be absorbed, and the amount absorbed depends on the wavelength. That's not the major practical distance when talking about communications though, which I'm guessing you are. The major difference is that smaller wavelengths (higher frequencies) can carry more information than longer wavelengths. The downside is that higher frequencies need more expensive circuitry to send and receive. In general, smaller wavelengths are more strongly absorbed than longer wavelengths, although this is only a minor nuisance for most communications applications. -- Tim Starling 03:26, 8 December 2005 (UTC)

Wave-theory, articles on my web page.

Wave-theory?

When wave (which is matter vibration) goes through matter (like, air, water, space-atmospehre, etc.) it changes. At starting point wave start to goes and frequence is 1Hz. Speed 1m/s. Then wave length is 1m. When wave travell through matter, alla other matter-conditions influence that wave and therefore, speed, wave length, and also then frequence, change.

I have thought this issue about 9 years and i'm sure that 1wave cannot be just same kind when it's flow through matter.

I draw a scientist picture of this issue. You can read it page,

http://www.moheitulkuri.fi/w/wave

e-mail; aaltoteoria@moheitulkuri.fi

Nature example. Thunder-voice is very high (amplitude, and frequence(ex.5000Hz) near the thunderbolt. But, same voice(wave) is much lower freq-voice longer distance(ex.100Hz).

Also. If you drop rock to water. Water-wave start to travell. Near drop-point (1m) wave is example, 10cm length and f=10Hz, speed 1m/s. But when you follow this one wave then longer distance ex.100m to dropping point, wave lengt is more than 10cm, also speed is lower than 1m/s. Therefore frequence is also lower than 10Hz.

I have made wave-length calculator example of this issue, on my web-page. You can get and study of this calculator on address;

http://www.moheitulkuri.fi/w/wavecalculator.xls

What is the travell-distance when can see that wave is transform?

I thougt that it depends of, starting frequence, matter-conditions, and amplitude. But example. frequence is 10 000 000 Hz and travell through space it stay allmost same kind maybe. example 1 000 000 000 km. I dont know what is frequence-transition on radiowave at much longer distance?

br. Heikki. 5.2.2005 Heikki 10:28, 20 February 2006 (UTC)