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uses of wavelength

Discussion in 'General Electronics Discussion' started by bhuvanesh, Jun 15, 2014.

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  1. bhuvanesh


    Aug 29, 2013
    red light has low frequency and high wavelenth

    but the red light become less visibile after travelling .i mean cannot hit the wall which half kilometer from the source.

    i need to know what changes in color with high frequency what changes in color with high wavelength

    why it cannot hit the wall with same intensity as we seen at source
  2. OLIVE2222


    Oct 2, 2011
    bhuvanesh likes this.
  3. bhuvanesh


    Aug 29, 2013
    which property affect the penetration of wave..Thank you in advance
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    The transparency of the medium.
  5. davenn

    davenn Moderator

    Sep 5, 2009
    nd you must remember colour is not a specification of a wavelength or a frequency
    Colour is JUST our perception of the visible light band with the makeup of our eyes
    just ask a colour blind person.

    you should really label that frequency

    there are many properties that affect penetration depth of a given frequency
    type of material, density of that material to name a couple

    VERY low radio frequencies in the ELF and VLF bands 3 to 30 kHz can penetrate water well and can be used to communicate with submarines ... whereas HF, VHF and up into the microwave bands cannot

    Lasers of specific colours can also penetrate water to respectable depths

    X-Rays penetrate the body tissue well

    Arouse1973 likes this.
  6. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
    Also the transparency of air depends on many factors:
    • dust
    • humidity
    • wavelength
    • turbulence (wind)
    • ...
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