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QAIPMT-2006-Ph-2455: NEET 2006 Physics - Class 12 AIPMT-2006-Ph-2455 Solution: Ionization potential of hydrogen atom is 13.6 eV. Hydrogen…
Ionization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. According to Bohr's theory, the spectral lines emitted by hydrogen will be
Multiple Choice Options
- A one
- B two
- C three
- D four
Step-by-Step Verified Solution
Energy required for exciting the hydrogen atom in the
ground state to orbit n is given by
E = E n - E 1
_ 12.1 = _ 13.6 n 2 - ( _ 13.6 1 2 ) = 3
_ n 2 = 13.6 1.5 = 9
_ n = 3
Number of spectral lines emitted
= n ( n _ 1 ) 2 = 3 _ 2 2