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Question: onlinemanchesterac and how to 3 marks d the bohr formula...

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online.manchester.ac and how to 3 markS d) The Bohr formula states that 13.6 eV En Use this to determine the energy and wavelength of the photon that is emitted when the electron in a hydrogen atop makes a transition from the n 5 energy level to 5 marks) e) The mean lifetime of an electron in the n = 2 energy level of a hydrogen atom is the n- 4 energy level. 1.6 ns. Estimate the precision with which it is possible to measure the frequency of the corresponding enitted photon. [4 marks]
e) The mean lifetime of an electron in the n 2 energy level of a hydrogen atom is 1.6 ns. Estimate the precision with which it is possible to measure the frequency of the corresponding emitted photon. l marks
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