Question

In intensity of spectral lines .......in different part of flame.
a) varies b) remains same c) changes d) remain unchanged

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Answer 1

c) changes is the correct answer.

Answer 2

The intensity of spectral lines varies in different parts of the flame.

• Each element of spectral lines has a different set of permissible orbits, so each element emits or absorbs photons with dissimilar energies -- and so, different wavelengths.

• The intensity of a spectral line at a specified frequency is associated with the net rate of emission or absorption at that frequency.

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