1.

The ratio of the difference in energy between the first and the second Bohr orbit to that between the second and the third Bohr orbit is

Answer»

`1/2`
`1/3`
`4/9`
`27/5`

Solution :`E_(1)-E_(2)=1312/(L^(2))=1312/(2^(2))=1312(3/4)`
`E_(2)-E_(3)=1312/(2^(2))=1312/(3^(2))=1312(5/36)`
`therefore(E_(1)-E_(2)):(E_(2)-E_(3))=3/4:5/36=27:5`


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