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प्रश्न
Calculate the minimum wavelength of the spectral line present in Balmer series of hydrogen
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उत्तर
`1/lambda = R[1/n_1^2 - 1/n_2^2]`
`1/lambda = R [1/2^2 - 1/prop^2]`
`:. 1/lambda = R/4`
`lamda = 4/R`
`lambda = 4/(10.97 xx 10^6) = 0.37 xx 10^(-6)`
`lambda = 3700Å`
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संबंधित प्रश्न
The ground state energy of hydrogen atom is – 13∙6 eV. If an electron makes a transition from an energy level – 1∙51 eV to – 3∙4 eV, calculate the wavelength of the spectral line emitted and name the series of hydrogen spectrum to which it belongs.
Find out the wavelength of the electron orbiting in the ground state of hydrogen atom.
Using Rydberg formula, calculate the longest wavelength belonging to Lyman and Balmer series. In which region of hydrogen spectrum do these transitions lie?
[Given R = 1.1 ✕ 107 m−1]
Hydrogen spectrum consists of discrete bright lines in a dark background and it is specifically known as hydrogen emission spectrum. There is one more type of hydrogen spectrum that exists where we get dark lines on the bright background, it is known as absorption spectrum. Balmer found an empirical formula by the observation of a small part of this spectrum and it is represented by
`1/lambda = "R"(1/2^2 - 1/"n"^2)`, where n = 3, 4, 5,....
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Number of spectral lines in hydrogen atom is ______.
Hydrogen spectrum consists of discrete bright lines in a dark background and it is specifically known as hydrogen emission spectrum. There is one more type of hydrogen spectrum that exists where we get dark lines on the bright background, it is known as absorption spectrum. Balmer found an empirical formula by the observation of a small part of this spectrum and it is represented by
`1/lambda = "R"(1/2^2 - 1/"n"^2)`, where n = 3, 4, 5,....
For Lyman series, the emission is from first state to nth state, for Paschen series, it is from third state to nth state, for Brackett series, it is from fourth state to nth state and for P fund series, it is from fifth state to nth state.
Rydberg constant is ______.
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The transitions A, B and C respectively represents
Name the series of lines of hydrogen spectrum which lie in the visible region.
In hydrogen spectrum, the ratio of wavelengths of the last line of Lyman series and that of the last line of Balmer series is ______.
Ionization potential of hydrogen atom is 13.6 V. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. The spectral lines emitted by hydrogen atoms according to Bohr’s theory will be ______.
If an electron in hydrogen atom jumps from 3rd orbit to 2nd orbit it emits a photon of wavelength λ. When it emits a photon from 4th orbit to 3rd orbit then the corresponding wavelength of emitted photon will be ______.
