Chemistry-
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Question

The wavelgth of radiation emitted when and electron in a hydrogen atom makes a transition from an energy level within=3 to a level with n= 2 is :[Given that En =fraction numerator negative 1312 over denominator n to the power of 2 end exponent end fraction kJmol-1 ]

  1. 6.56×107m    
  2. 65.6nm    
  3. 65.6×107m    
  4. any of the above    

The correct answer is: 6.56×107m

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