R

Ram Sharma • 193.88K Points
Coach Physics

Q. Sodium vapour lamps glow with yellow colour. This is due to

  • (A) its ability to absorb all other colours except yellow
  • (B) sublimation of sodium to emit yellow colour
  • (C) the low ionisation energy of sodium
  • (D) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum
  • Correct Answer - Option(D)
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  • Filed under category Physics

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