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Find the ratio of de Broglie wavelength of molecules of hydrogen and helium which are at temperatures `27^circ` and `127^circC`, respectively.

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Find the ratio of de Broglie wavelength of molecules of hydrogen and helium which are at temperatures `27^circ` and `127^circC`, respectively.
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Since,`lambda=h/(mupsilon)=h/sqrt(3mkT),(lambdaH)/(lambdaHe)=sqrt((m_(He)T_(He))/(m_(H)T_(H)))=sqrt(8/3)`
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