Physics
A 12.5 eV electron beam is used to bombard gaseous hydrogen at room temperature. What series of wavelengths will be emitted?
13
Sep
A 12.5 eV electron beam is used to bombard gaseous hydrogen at room temperature. What series of wavelengths will be emitted? A 12.5 eV electron beam is used to bombard gaseous hydrogen at room temperature. What series of wavelengths will be emitted? September 13, 2021 Category: Chapter 12 - Atoms , NCERT Exemplar Class 12 [...]
In accordance with the Bohr’s model, find the quantum number that characterises the earth’s revolution around the sun in an orbit of radius 1.5 × 10^11 m with orbital speed 3 × 10^4 m/s. (Mass of earth = 6.0 × 10^24 kg.)
13
Sep
In accordance with the Bohr’s model, find the quantum number that characterises the earth’s revolution around the sun in an orbit of radius 1.5 × 10^11 m with orbital speed 3 × 10^4 m/s. (Mass of earth = 6.0 × 10^24 kg.) find the quantum number that characterises the earth’s revolution around the sun in [...]
The radius of the innermost electron orbit of a hydrogen atom is 5.3×10^11 m. What are the radii of the n = 2 and n =3 orbits?
13
Sep
The radius of the innermost electron orbit of a hydrogen atom is 5.3×10^11 m. What are the radii of the n = 2 and n =3 orbits? The radius of the innermost electron orbit of a hydrogen atom is 5.3×10^11 m. What are the radii of the n = 2 and n =3 orbits? September [...]
(a) Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbital period in each of these levels
13
Sep
(a) Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbital period in each of these levels (a) Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1 2 [...]
A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of the photon.
13
Sep
A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of the photon. A hydrogen atom initially in the ground level absorbs a photon which excites it to the n = 4 level. Determine the wavelength and frequency of the [...]
The ground state energy of hydrogen atom is – 13.6 eV. What are the kinetic and potential energies of electron in this state?
13
Sep
The ground state energy of hydrogen atom is – 13.6 eV. What are the kinetic and potential energies of electron in this state? The ground state energy of hydrogen atom is – 13.6 eV. What are the kinetic and potential energies of electron in this state? September 13, 2021 Category: Chapter 12 - Atoms , [...]
A difference of 2.3 eV separates two energy levels in an atom. What is the frequency of radiation emitted when the atom makes a transition from the upper level to the lower level?
13
Sep
A difference of 2.3 eV separates two energy levels in an atom. What is the frequency of radiation emitted when the atom makes a transition from the upper level to the lower level? A difference of 2.3 eV separates two energy levels in an atom. What is the frequency of radiation emitted when the atom [...]
what is the shortest wavelength present in the Pascal series of spectral lines ?
13
Sep
what is the shortest wavelength present in the Pascal series of spectral lines ? what is the shortest wavelength present in the Pascal series of spectral lines ? September 13, 2021 Category: Chapter 12 - Atoms , NCERT Exemplar Class 12 , Physics ,
You are given a 2μF parallel plate capacitor. How would you establish an instantaneous displacement current of 1mA in the space between its plates?
04
Sep
You are given a 2μF parallel plate capacitor. How would you establish an instantaneous displacement current of 1mA in the space between its plates? You are given a 2μF parallel plate capacitor. How would you establish an instantaneous displacement current of 1mA in the space between its plates? September 4, 2021 Category: Chapter 8 - [...]
Show that the magnetic field B at a point in between the plates of a parallel-plate capacitor during charging is εoμr/2 dE/dt (symbols having usual meaning).
04
Sep
Show that the magnetic field B at a point in between the plates of a parallel-plate capacitor during charging is εoμr/2 dE/dt (symbols having usual meaning). Show that the magnetic field B at a point in between the plates of a parallel-plate capacitor during charging is εoμr/2 dE/dt (symbols having usual meaning). September 4, 2021 [...]