Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > The ratio of de Broglie wavelength of molecules of hydrogen and helium gas moving at rms speed in two gas jars kept separately at temperatures of 27^∘C and 127^∘C respectively is:
The ratio of de Broglie wavelength of molecules of hydrogen and helium gas moving at rms speed in two gas jars kept separately at temperatures of 27^∘C and 127^∘C respectively is: