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The wave number of a spectral line is `5xx10^(5)m^(-1)` The energy corresponding to this line is

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The wave number of a spectral line is `5xx10^(5)m^(-1)` The energy corresponding to this line is
A. `3.49xx10^(-23)` kj
B. `4.45xx10^(-24)` j
C. `5.50xx10^(-22)` J
D. `9.93xx10^(-23)` kJ
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Correct Answer - D
Energy `E=(hc)/lambda = hc barv`
`=6.62xx10^(-34)xx3xx10^(8)xx5xx10^(5)(barv=1/lambda)`
`=9.93xx10^(-23)` kj
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