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Radio waves

by kur82
Tags: radio, waves
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kur82
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Mar8-14, 11:56 AM
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radio waves propagate through air or penetrate material more than visible light. is it correct? why
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UltrafastPED
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Mar8-14, 12:23 PM
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Longer wave lengths always penetrate deeper than shorter wavelengths.

OTOH, they also carry less energy.
Redbelly98
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Mar8-14, 03:38 PM
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Quote Quote by UltrafastPED View Post
Longer wave lengths always penetrate deeper than shorter wavelengths.
That is not always true. X-rays penetrate deeper through matter than visible light, yet are of a shorter wavelength.

Drakkith
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Mar8-14, 05:59 PM
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Radio waves

Quote Quote by kur82 View Post
radio waves propagate through air or penetrate material more than visible light. is it correct? why
Electromagnetic propagation is a complex subject, especially when talking about a medium with multiple layers of differing properties such as the atmosphere. There are few simple rules.

It doesn't answer your question exactly, but if you'd like some info regarding radio wave transmission check out module 10, chapters 1 & 2 here: http://www.navymars.org/national/tra.../NMO1/NMO1.htm
dauto
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Mar8-14, 08:26 PM
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Quote Quote by kur82 View Post
radio waves propagate through air or penetrate material more than visible light. is it correct? why
There is no simple explanation and in fact is note entirely true. The ionosphere blocks long radio waves effectively. To understand how some particular wavelength interacts with some particular material requires a deep understanding of the nature of light, matter, and their interactions. You might as well have asked the simpler question "Why is glass transparent" and you've gotten pretty much the same answer.


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