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You must have seen chandeliers having glass prisms. The light from a tungsten bulb getsdispersedwhile passing throughthese prisms and we see coloured spectrum. If we use an LED light instead of a tungsten bulb, will we be able to see the same effect ?

Answer»

Solution :1. No, the DISPERSION of light from a TUNGSTEN bulb and light from an LED willnot be the same.
2. This is because:
(i) The intenity of the colors in LED will not be as uniform as that with tungsten.
(ii) The color distribution seen MAY vary with manufacturer.
3. LED emisson has a narrow BAND of colors, and not CONTINUOUS as in light from tungsten.


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