the region of the spectrum. . Calculate the wavelength for the emission transition if it starts from the orbit having radius . nm and ends at .
pm. Name the series to which this transition belongs and the region of the spectrum. . Dual behaviour of matter proposed by de Broglie led to the discovery of electron microscope often used for the highly magnified images of biological molecules and other type of material.
If the velocity of the electron in this microscope is . × ms – , calculate de Broglie wavelength associated with this electron. . Similar to electron diffraction, neutron diffraction microscope is also used for the determination of the structure of molecules.
If the wavelength used here is pm, calculate the characteristic velocity associated with the neutron. . If the velocity of the electron in Bohr’s first orbit is . × ms – , calculate the de Broglie wavelength associated with it.
. The velocity associated with a proton moving in a potential difference of V is . × ms – . If the hockey ball of mass .
kg is moving with this velocity, calcualte the wavelength associated with this velocity. . If the position of the electron is measured within an accuracy of + . nm, calculate the uncertainty in the momentum of the electron.
Suppose the momentum of the electron is h / π m × . nm, is there any problem in defining this value. . The quantum numbers of six electrons are given below.
Arrange them in order of increasing energies. If any of these combination(s) has/have the same energy lists: . n = , l = , m l = – , m s = – / . n = , l = , m l = , m s = + / .
n = , l = , m l = , m s = + / . n = , l = , m l = – , m s = – / . n = , l = , m