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State Bohr's postulates and derive an expression for the energy of electron in nth orbit in Bohr's model of hydrogen atom.
Calculate binding energy per nucleon (in MeV) of ¹²₆C. Given : m(¹²₆C) = 12.000000 u, m(¹₀n) = 1.008665 u, m(¹₁H) = 1.007825 u
How did de Broglie hypothesis provide an explanation for Bohr's second postulate for quantisation of orbital angular momentum of the orbiting electron in hydrogen atom ? Discuss.
Identify the transition of electron in Bohr model which gives rise to (i) the maximum, and (ii) the minimum wavelength in Balmer series of hydrogen spectrum.
Differentiate between 'impact parameter' and 'distance of closest approach' in alpha particle scattering experiment. Identify, situations when impact parameter is (i) minimum, and (ii) very large.
An electron cannot revolve around the nucleus in a hydrogen atom at an arbitrary distance. Explain.
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