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 ionization energy for H atom in the ground state is 2.18 x 10-18 J. The process energy requirements will be: \(( He^+(g) \rightarrow He^{2+}(g) + e^- )\)
1. 8.72 x 10-18 J
2. 7.54 x 10-18 J
3. 5.67 x 10-17 J
4. 2.18 x 10-17 J
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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 energy associated with the fifth orbit of a hydrogen atom is
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe wave number for the longest wavelength transition in the Balmer series of atomic hydrogen would be -
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe energy of an electron in H - atom is given by En = J. The shortest wavelength of light that can be used to remove an electron completely from n = 2 orbit will be
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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 & 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 & Biology