Energy of a photon is 4.5 eV/atom. The wavelength of the photon is equal to

  1. A

    27.757 nm

  2. B

    27579 nm

  3. C

    2757 nm

  4. D

    275.7 nm

    Join Our Infinity Learn's Learning Program!

    FREE Lve Classes, PDFs, Solved Questions, PYQ's, Mock Tests, Practice Tests, and Test Series!

    +91

    Verify OTP Code (required)


    I agree to the terms and conditions and privacy policy.

    Solution:

    E=hCλ; E=4.5 ev/atom;  4.5×1.602×10-19J=6.625×10-34J.s×3×108 m/sλ; λ=2.757×10-7m=275.7 nm;                         or λ(nm)=1240E(ev/atom)

    Chat on WhatsApp

      Join Infinity Learn Regular Class Program!

      Sign up & Get instant access to FREE PDF's, solved questions, Previous Year Papers, Quizzes and Puzzles!

      +91

      Verify OTP Code (required)





      I agree to the terms and conditions and privacy policy.