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Atoms and Nuclei question

2015 · Q131
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Atoms and Nuclei question

2015 · Q131

NEETPhysicsAtoms and NucleiMCQ+4 / −1
Consider 3rd orbit of He+ (Helium), using non-relativistic approach, the speed of electron in this orbit will be [given K = 9 ×\times× 109 constant, Z = 2 and h (Planck's Constant) = 6.6 ×\times× 10−-−34 J s]
  1. A
    0.73 ×\times× 106 m/s
  2. B
    3.0 ×\times× 108 m/s
  3. C
    2.92 ×\times× 106 m/s
  4. D
    1.46 ×\times× 106 m/s
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