The value of the de- Broglie wavelength of He gas at 100K is 5times that of the de- Broglie wavelength gas X ,at 1250K .What is atomic mass of X ?

The de-Broglie wavelength lamda

The atomic masses of He and Ne are 4 and 20 amu respectively . The value of the de Broglie wavelength of He gas at -73.^(@)C is ''M'' times that of the de Broglie wavelength of Ne at 727.^(@)C. M is

The de Broglie wavelength is given by

de-Broglie wavelength lambda is

Questions on de-Broglie Wavelength

The de Broglie wavelength lambda of a particle