1. | \(2\) possible energy values. |
2. | \(3\) possible energy values. |
3. | \(4\) possible energy values. |
4. | \(5\) possible energy values. |
The wavelength of the first spectral line of the Lyman series of the hydrogen spectrum is:
1. \(1218\) Å
2. \(974.3\) Å
3. \(2124\) Å
4. \(2120\) Å
In which of the following systems will the wavelength corresponding to \(n=2\) to \(n=1\) be minimum?
1. | hydrogen atom |
2. | deuterium atom |
3. | singly ionized helium |
4. | doubly ionized lithium |
1. | visible region |
2. | far infrared region |
3. | ultraviolet region |
4. | infrared region |
The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is:
1. \(1\)
2. \(4\)
3. \(0.5\)
4. \(2\)
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. \(2\rightarrow 1\)
Which of the following transitions will the wavelength be minimum?
1. | \(n=5\) to \(n=4\) |
2. | \(n=4\) to \(n=3\) |
3. | \(n=3\) to \(n=2\) |
4. | \(n=2\) to \(n=1\) |