Sodium vapour lamps glow with yellow colour. This is due to
A. sublimation of sodium to emit yellow colour
B. The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum
C. The low ionisation energy of sodium
D. Its ability to absorb all other colours except yellow
Answer: Option B
Solution (By Examveda Team)
Sodium Vapour Lamps glow with yellow colour due to the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum.This Question Belongs to General Knowledge >> Chemistry
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