Find the ratio of de broglie wavelength of molecules of hydrogen and helium which are at temperatures 27 degree celcius - Physics - Dual Nature Of Radiation And Matter

Question

Find the ratio of de broglie wavelength of molecules of hydrogen
and helium which are at temperatures 27 degree celcius and 127
degree celcius respectively

Akanksha Varma · Answer

λH2 / ​λHe = sqrt
(MHeTHe) / sqrt
(MH2TH2)
= sqrt (4*(127+273)) / sqrt (2*(27+273))
= sqrt (1600/600) = sqrt (8/3)

Find the ratio of de broglie wavelength of molecules of hydrogen and helium which are at temperatures 27 degree celcius and 127 degree celcius respectively