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AP EAMCET202318 May 2023Evening ShiftPhysicsAtomic PhysicsActual

In hydrogen atom, if an electron in the orbit with principal quantum number ' n ' jumps to the first excited state, the wavelength of the emitted photon is ' '. Then the value of n is (R-Rydberg constant)

Options

  1. A4 R R+4
  2. B4 R R-4
  3. CR -4 4 R
  4. DR +4 4 R

Correct answer

B. 4 R R-4

Step-by-step solution

(When electron jump from n ₂= n to first excited state aligned & 1 = R [ 1 n ₁^2 - 1 n ₂^2 ]= R [ 1 4 - 1 n ^2 ] & 1 = R 4 - R n ^2 R n ^2 = R 4 - 1 R n ^2 = R -4 4 & n ^2 R = 4 R -4 n = 4 R R -4 aligned

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