Q. The colour output of a sodium vapour lamp is
Solution:
Sodium vapor lamps emit yellow light. They are very efficient, and provide high-intensity light suitable for illuminating large, open areas. The table below shows the color produced by different vapour lamps.
| Vapour lamp | Colour |
|---|---|
| Chlorine | Green |
| Nitrogen | Red |
| Hydrogen | Blue |
| Sodium | Yellow |
| Neon | Orange |
| Mercury | White |
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