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Question: Answered & Verified by Expert
The wavelength of line emitted when an electron jumps from an outer orbit to inner orbit which possess an energy difference of 3 eV will be:
ChemistryStructure of AtomNEET
Options:
  • A 3660 
  • B 3620 
  • C 4140 
  • D 4560 
Solution:
2575 Upvotes Verified Answer
The correct answer is: 4140 
Use E=hc/λ
Or E(ev)= 12420 λ(Å)
λ(Å)= 12420 3 =4140 Å

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