The ionization energy of hydrogen atom is 13.6 eV. Following

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The ionization energy of hydrogen atom is 13.6 eV. Following Bohr’s theory, the energy corresponding to a transition between 3rd and 4th orbit is

1. 3.40 eV
2. 1.51 eV
3. 0.85 eV
4. 0.66 eV

Correct Option: D

E = E₄ – E₃

= -	13.6	-		-	13.6		= - 0.85 + 1.51 = 0.66 eV
	4²				3²