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14 Sep 2008 18:08:42 IST

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An electron revolves in the 1st orbit of H atom.

a) Current associated due to orbital motion of electron is 1.06 mA.

b) Magnetic field at the centre of nucleus due to orbital motion of electron is 12.5 Tesla.

c) Both a) and b)

d) First excitation energy of H atom is 10.2 eV.

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INDRAJA AMBADI

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Joined: 6 Jun 2007

Posts: 128

17 Sep 2008 22:25:39 IST

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d) is correct
energy=13.26 [ i/n1^2 -1/n2^2] eV
For first exitation energy n1=1, n2 = 2

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