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Ray Optics — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsRay Optics1 Mark
MCQ
The spectrum obtained from a sodium vapour lamp is an example of
  • A
    Absorption spectrum
  • ✓
    Emission spectrum
  • C
    Continuous spectrum
  • D
    Band spectrum
✓

Answer

Correct option: B.
Emission spectrum
Sodium light gives emission spectrum having two yellow lines.

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