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The minimum wavelength of photon is `5000 Å` , its energy will be

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The minimum wavelength of photon is `5000 Å` , its energy will be
A. `2.5 eV`
B. `50 V`
C. `5.48 eV`
D. `7.48 eV`
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Correct Answer - A
`E = (12375)/(lamba)` = `(12375)/(5000) = 2.47 eV ~~ 2.5 eV`
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