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Q. When a metal is heated in a flame, the electrons absorb energy & jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in

  • (A) Raman spectra
  • (B) Fluorescence
  • (C) Emission spectra
  • (D) Absorption spectra
  • Correct Answer - Option(C)
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Explanation by: Admin
Emission spectra.When a metal atom is strongly heated, its electrons absorb the heat energy & jump to a higher energy level. The result of all these jumps is to produce what is called an emission spectrum. When the electron returns to its original position it gives off the energy it absorbed in the form of light. An emission spectrum is a set of coloured lines that correspond to the energy the electron has released at each stage of its fall back to its original state.

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