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KCET2009PhysicsAtomic Physics

Continuous emission spectrum is produced by

Options

  1. Aincandescent electric lamp
  2. Bmercury vapour lamp
  3. Csodium vapour lamp
  4. Dpolyatomic substances

Correct answer

A. incandescent electric lamp

Step-by-step solution

Incandescent electric lamp produces continuous emission spectrum whereas mercury and sodium vapour give line emission spectrum. Polyatomic substances such as H ₂, CO ₂ and KMnO ₄ produces band absorption spectrum.

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