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  4. A hydrogen atom is initially at rest and free to move is in the second excited state. It comes to ground state by emitting a photon, then the momentum of hydrogen atom will he approximately: (in kg-m/s)

Q. A hydrogen atom is initially at rest and free to move is in the second excited state. It comes to ground state by emitting a photon, then the momentum of hydrogen atom will he approximately: (in )

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Solution:

Momentum of photon is given as


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4. Muon is a negatively charged particle with a mass me, where me is the mass of the electron and e is the electronic charge. If - is bound to a proton to form a hydrogen like atom, identify the correct statements.
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(B) The speed of the in the orbit is times that of the electron in the orbit.
(C) The ionization energy of muonic atom is times more than that of an hydrogen atom.
(D) The momentum of the muon in the orbit is times more than that of the electron.

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