Atoms questions
233 published questions with worked solutions.
- Let X and Z be the frequencies of series limit of Lyman series and Balmer series. If Y is the frequency of first line of Lyman...
- Wavelength of radiations emitted when an electron jumps from a state A to state C is 2000 Å and it is 6000 Å. When the electron...
- The shortest wavelength in hydrogen spectrum of Lyman series when R_H=109678 cm^ -1 is
- In the Bohr model of a hydrogen atom, the centripetal force is furnished by the coulomb attraction between the proton and the...
- Two energy levels of an electron in an atom are separated by 2.3 eV. The frequency of radiation emitted when the electrons goes...
- The ground state energy of hydrogen atom is -13.6 eV. What is the potential energy of the electron in this state
- The ratio of the largest to shortest wavelengths in Lyman series of hydrogen spectra is
- The ratio of the longest to shortest wavelengths in Brackett series of hydrogen spectra is
- If _ max is 6563 Å, then wavelength of second line for Balmer series will be
- Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is
- Hydrogen (_1^1 H ), Deuterium (_1^2 H ), singly ionised Helium (_2^4 He )^+ and doubly ionised lithium (_3^6 Li )^ ++ all have...
- For Balmer series, wavelength of first line is _1 and for Brackett series, wavelength of first line is _2 then _1/ _2 is
- The lines of Lyman series are present in which region of the spectrum? [SCRA 1996, UP PET 2000, MP PMT 2000, UPBEAT 2000]
- The largest distance between the interatomic planes of a crystal is 10^ -7 cm. The upper limit for the wavelength of X-rays which...
- An electron of a stationary hydrogen atom passes from the fifth energy level to the ground level. The velocity that the atom...
- The first member of the Paschen series in hydrogen spectrum is of wavelength 18,800 Å. The short wavelength limit of Paschen...
- What is the wavelength of light for the least energetic photon emitted in the Lyman series of the hydrogen spectrum? (take hc =...
- The minimum kinetic energy of a ground state hydrogen atom required to have head-on collision with another ground state hydrogen...
- A stationary He^+ ion emits a photon corresponding to the first line of the Lyman series which further liberates a photoelectron...
- Magnetic moment by virtue of the orbital motion of an electron in an atom when orbital angular momentum = one quantum unit is
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