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Question Number 22050 by Tinkutara last updated on 10/Oct/17

$$\mathrm{Calculate}\mathrm{the}\mathrm{energy}\mathrm{emitted}\mathrm{when}$$$$\mathrm{electrons}\mathrm{of}1\mathrm{g}\mathrm{atom}\mathrm{of}\mathrm{hydrogen}$$$$\mathrm{undergo}\mathrm{transition}\mathrm{giving}\mathrm{the}\mathrm{spectral}$$$$\mathrm{line}\mathrm{of}\mathrm{lowest}\mathrm{energy}\mathrm{in}\mathrm{the}\mathrm{visible}$$$$\mathrm{region}\mathrm{of}\mathrm{its}\mathrm{atomic}\mathrm{spectrum}$$$$({\mathrm{R}}_{\mathrm{H}}=1.1\times {10}^7{\mathrm{m}}^{-1},c=3\times {10}^8{ms}^{-1},$$$$h=6.62\times {10}^{-34}\mathrm{Js})$$

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