The maximum number of emission lines obtained when the excited electron of the H atom jumps from n = 6 to the ground state is -
1. 30
2. 21
3. 15
4. 28
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe ratio of the wavelengths of the last lines of the Balmer to Lyman series is
1. 4:1
2. 27:5
3. 3:1
4. 9:4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe wavelength of the radiation emitted when in a H atom, the electron falls from infinity to stationary state 1, is:
1.
2. 192 nm
3. 406 nm
4. 91 nm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen an electron jumps from n=5 to n=1 in a hydrogen atom, the number of spectral lines obtained is
1. 3
2. 4
3. 6
4. 10
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe energy associated with the fifth orbit of a hydrogen atom is
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe wavelength of light emitted when the electron in a H atom undergoes the transition from an energy level with n = 4 to an energy level with n = 2, is
1. 586 mm
2. 486 nm
3. 523 nm
4. 416 pm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe transition in the hydrogen spectrum that would have the same wavelength as Balmer transition from n = 4 to n = 2 of He+ spectrum is -
1.
2. = 3 to n1 = 2
3. = 3 to n1 = 1
4. = 2 to n1 = 1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe electronic transition in the hydrogen atom that emits maximum energy is:
1. 2 1
2. 1 4
3. 4 3
4. 3 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe maximum wavelength in the Lyman series of He+ ion is-
1. 3R
2. 1/3R
3. 1/R
4. 2R
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEmission transitions in the Paschen series end at orbit n = 3 and start from orbit n and can be represented as v = 3.29 × 1015 (Hz). The value of n if the transition is observed at 1285 nm is
1. 6
2. 5
3. 8
4. 9
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology