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The energy band gap of semiconducting material to produce violet (wavelength = 4000 ) LED is ________ eV. (Round off to the nearest integer).

0 5 Views | Posted 3 months ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    3 months ago

    E 9 = h c λ = 1 2 4 2 λ ( n m ) = 1 2 4 2 4 0 0 = 3 . 1 0 5

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