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  • Sodium light and my experiment...

    sanks85

    Member

    Updated: Oct 26, 2024
    Views: 990
    hey guyz i have a confusion about the sodium light... we all know that these lights are widely used on highways etc... the confusion is that why these lights get off after some time of lightning😒...also when we hit the cover of these lights slowly these start lightning again😕(i personally hitted it from top in my college😁).... and the confusion is why these lights emitt white light in starting and than later get yellow...anybody plzz help out...
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  • Kaustubh Katdare

    Administrator • Feb 4, 2010

    Please refrain from using non-English words in your posts/titles. The title of this thread has been edited. CE is read by engineers from over 180 countries. The primary language of CE is English.
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  • sanks85

    Member • Feb 4, 2010

    sorry sir.. i will mind it next time ....
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  • amitdudhi

    Member • Mar 17, 2010

    becuse there r monochromatic
    n same phase
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  • HImanshu_Sharma

    Member • Mar 19, 2010

    lamps have a borosilicate glass gas discharge tube (arc tube) containing solid sodium and a small amount of neon and argon gas Pennium mixture to start the gas discharge. The discharge tube may be linear (SLI lamp)<a href="https://en.wikipedia.org/wiki/Sodium-vapor_lamp#cite_note-1" target="_blank" rel="nofollow noopener noreferrer">Sodium Vapor Lamp Cite Note 1</a> or U-shaped. When the lamp is turned on it emits a dim red/pink light to warm the sodium metal and within a few minutes it turns into the common bright <a href="https://en.wikipedia.org/wiki/Yellow_%28colour%29" target="_blank" rel="nofollow noopener noreferrer">Yellow %28Colour%29</a>yellow as the sodium metal <a href="https://en.wikipedia.org/wiki/Vaporization" target="_blank" rel="nofollow noopener noreferrer">Vaporization</a>vaporizes. These lamps produce a virtually monochromatic light averaging at a 589.3 nm wavelength (actually two dominant spectral lines very close together at 589.0 and 589.6 nm). As a result, the colors of illuminated objects are not easily distinguished since they are seen almost entirely by their reflection of this narrow bandwidth yellow light.
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  • HImanshu_Sharma

    Member • Mar 19, 2010

    hey got answer?
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