- 1(current)
Q. No.In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series to the longest wavelength in the Balmer series is:
| 1. | \(\dfrac{4}{9}\) | 2. | \(\dfrac{9}{4}\) |
| 3. | \(\dfrac{27}{5}\) | 4. | \(\dfrac{5}{27}\) |
Subtopic: Â Spectral Series |
 72%
Level 2: 60%+
NEET - 2015
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The hydrogen gas with its atoms in the ground state is excited by monochromatic radiation of \(\lambda = 975~\mathring{{A}}.\) The number of spectral lines in the resulting spectrum emitted will be:
1. \(3\)
2. \(2\)
3. \(6\)
4. \(10\)
Subtopic: Â Spectral Series |
 56%
Level 3: 35%-60%
AIPMT - 2014
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The ratio of the longest wavelengths corresponding to the Lyman and Balmer series in the hydrogen spectrum is:
| 1. | \(\dfrac{3}{23}\) | 2. | \(\dfrac{7}{29}\) |
| 3. | \(\dfrac{9}{31}\) | 4. | \(\dfrac{5}{27}\) |
Subtopic: Â Spectral Series |
 89%
Level 1: 80%+
AIPMT - 2013
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Electron in hydrogen atom first jumps from the third excited state to the second excited state and then from the second excited to the first excited state. The ratio of the wavelengths \(\lambda_1:\lambda_2\) emitted in the two cases is:
1. \(\dfrac{7}{5}\)
2. \(\dfrac{20}{7}\)
3. \(\dfrac{27}{5}\)
4. \(\dfrac{27}{20}\)
1. \(\dfrac{7}{5}\)
2. \(\dfrac{20}{7}\)
3. \(\dfrac{27}{5}\)
4. \(\dfrac{27}{20}\)
Subtopic: Â Spectral Series |
 72%
Level 2: 60%+
AIPMT - 2012
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The transition from the state \(n=3\) to \(n=1\) in hydrogen-like atoms results in ultraviolet radiation. Infrared radiation will be obtained in the transition from:
1. \(3\rightarrow 2\)
2. \(4\rightarrow 2\)
3. \(4\rightarrow 3\)
4. \(2\rightarrow 1\)
Subtopic: Â Spectral Series |
 82%
Level 1: 80%+
AIPMT - 2012
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The wavelength of the first line of Lyman series for the hydrogen atom is equal to that of the second line of Balmer series for a hydrogen-like ion. The atomic number \(Z\) of hydrogen-like ion is:
1. \(4\)
2. \(1\)
3. \(2\)
4. \(3\)
1. \(4\)
2. \(1\)
3. \(2\)
4. \(3\)
Subtopic: Â Spectral Series |
 68%
Level 2: 60%+
AIPMT - 2011
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- 1(current)
Q. No.
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