Arihant Physics by D.C Pandey

An electron in a Bohr orbit of hydrogen atom with the quantum number n has an angular momentum 4.2176×10^−24 kgm^2 /s . If the electron drops from this level to the next lower level, the radius of new orbit is An electron in a Bohr orbit of hydrogen atom with the quantum number n has [...]

The ratio of de Broglie wavelength of molecules of hydrogen and helium gas moving at rms speed in two gas jars kept separately at temperatures of 27^∘C and 127^∘C respectively is: The ratio of de Broglie wavelength of molecules of hydrogen and helium gas moving at rms speed in two gas jars kept separately at [...]

Angular momentum (L) and radius (r) of a hydrogen atom are related as. Angular momentum (L) and radius (r) of a hydrogen atom are related as September 4, 2021 Category: Arihant Physics by D.C Pandey ,

Magnetic field at the center (at nucleus) of the hydrogen like atoms (atomic number =Z) due to the motion of electron in nth orbit is proportional to Magnetic field at the center (at nucleus) of the hydrogen like atoms (atomic number =Z) due to the motion of electron in nth orbit is proportional to September [...]

Consider the electron energy level diagram of H-atom Photons associated with shortest and longest wavelength would be emitted from the atom by the transitions labeled Consider the electron energy level diagram of H-atom Photons associated with shortest and longest wavelength would be emitted from the atom by the transitions labeled September 4, 2021 Category: Arihant [...]

When an electron in the hydrogen atom in ground state absorbs a photon of energy 12.1eV, its angular momentum its angular momentum When an electron in the hydrogen atom in ground state absorbs a photon of energy 12.1eV September 4, 2021 Category: Arihant Physics by D.C Pandey ,

The ratio of the maximum wavelength of the Lyman series in hydrogen spectrum to the maximum wavelength in the Panchen series is The ratio of the maximum wavelength of the Lyman series in hydrogen spectrum to the maximum wavelength in the Panchen series is September 4, 2021 Category: Arihant Physics by D.C Pandey ,

In hydrogen and hydrogen-like atom , the ratio of E_(4 n) – E_(2 n) and E_(2 n) – E_(n) varies with atomic number z and principal quantum number n as In hydrogen and hydrogen-like atom the ratio of E_(4 n) - E_(2 n) and E_(2 n) - E_(n) varies with atomic number z and principal [...]

The maximum angular speed of the electron of a hydrogen atom in a stationary orbit is. The maximum angular speed of the electron of a hydrogen atom in a stationary orbit is. September 4, 2021 Category: Arihant Physics by D.C Pandey ,

In a hydrogen atom, electron is in the nth excited state. It comes down to the first excited state by emitting 10 different wavelengths. The value of n is electron is in the nth excited state. It comes down to the first excited state by emitting 10 different wavelengths. The value of n is In [...]