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Question: Answered & Verified by Expert
Assertion : Absorption spectrum consists of some bright lines separated by dark spaces.
Reason : Emission spectrum consists of dark lines.
ChemistryStructure of AtomAIIMSAIIMS 2002
Options:
  • A If both the assertion and reason are true and reason is a correct explanation of the assertion.
  • B If both assertion and reason are true but assertion is not a correct explanation of the assertion.
  • C If the assertion is true but the reason is false.
  • D If both assertion and reason are false.
Solution:
2045 Upvotes Verified Answer
The correct answer is: If both assertion and reason are false.
Absorption spectrum is produced when white light is passed through a substance and transmitted light is analysed by a spectrograph. The dark spaces corresponds to the light radiation absorbed by the substance. And emission spectrum is produced by analysing the radiant energy emitted by an excited substance by a spectrograph. Thus, discontinuous spectra consisting of a series of sharp lines and separated by dark bands are obtained.

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