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We know that the Rutherford model of the atom is superior to the Thompson model because when alpha particles are scattered from atoms:
The distance of closest approach when a 15.0 MeV proton approaches gold nucleus (Z = 79) is
Rutherford’s experiments on scattering of alpha particles proved that:
The ratio of the speed of the electron in the ground state of hydrogen atom to the speed of light is
In hydrogen atom the kinetic energy of electron in an orbit of radius r is given by
Select an incorrect alternative:
i. the radius of the nth orbit is proprtional to n2
ii. the total energy of the electron in the nth orbit is inversely proportional to n
iii. the angular momentum of the electron in nth orbit is an integral multiple of h/2π
iv. the magnitude of potential energy of the electron in any orbit is greater than its kinetic energy
The number of times an electron goes around the first Bohr orbit in a second is
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