If Î cu is the wavelength of ka X-ray line of copper
The ground state energy of hydrogen atom is i 3.6 eV. When its electron is in the first excited state, its excitation energy is
If in nature there may not be an element for which the principal quantum number n>4, then the total possible number of elements wi..
If an electron is revolving around the hydrogen nucleus at a distance of 0.1 nm, what should be its speed?
The first excitation potential of a given atom is 10.2 V. Then, ionisation potential must be
The ionisation energy of 10 times ionised sodium atom is
The Ionization energy of the electron in the hydrogen atom
a - particles of kinetic energy 7.7 MeV are being scattered by the nucleus of gold which has 79 electrons. The distance of closes..
If the ratio of radii of two spheres of same material is 1 : 4, then the ratio of their heat capacities is
In the Bohrs hydrogen atom model, the radius of the stationary orbit is directly proportional to
In hydrogen atom, an electron jumps from bigger orbit to smaller orbit so that radius of smaller orbit is one-fourth of radius of ..
For the hydrogen atom the energy of radiation emitted in the transition from 4th excited state to 2nd excited state according to B..
The angular momentum of electron in
Which of the following lines of the Hâ€“atom spectrum belongs to the Balmer series?
For hydrogen atom, in which of the following transitions will the wavelength emitted photon be minimum
The wavelength of first of line of Balmer series is 6563 A. The wavelength of first line of Lyman series will be
In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series to the wavelength in the Balmer series is
The spectral series of the hydrogen atom that lies in the visible region of the electromagnetic spectrum
According to Bohrs theory of hydrogen atom, for the electron in the nth allowed orbit the
I. . linear momentum is proportional to ..
The wave number of a photon in Brackett series of
If n is the orbit number of the electron in a hydrogen atom
An electron jumps from the 4th orbit to the 2nd orbit of
Ionisation energy of He+ ion at minimum position is
What is the wavelength of light for the least energetic photon emmited in the Lyman series of the hydrogen spectrum
Number of spectral line in hydrogen atom is
Calculated the highest frequency of the emitted photon in the paschen series of spectral lines of hydrogen atom
In a Rutherford scattering experiment when a projectile of charge
For Balmer series, wavelength of first line is
The ratio of the magnetic dipole moment to the angular
The product of linear momentum and angular momentum of an electron of the hydrogen atom is proportional to n^x, where x is
if 13.6 ev energy is required to jonise a hydrogen atom,
The ratio of radii of the nuclei, 13 Al^27 and 52Te^125 is
The nucleus of an atom consists of
First Bohr radius of an atom with Z= 82 is R. Radius of its third orbit is
Which of the following value is the correct order of nuclear density?
The transition from the state n=4 to n=3 in a hydrogen like atom results in ultraviolet radiation
If an electron in hydrogen atom jumps from an orbit of level n = 3 to an orbit of level n = 2
Continuous emission spectrum is produced by
The ratio of kinetic energy and the total energy of the electron in the nth quantum state of Bohrs atomic model of hydrogen atom i..
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