Find the typical de Broglie wavelength associated with a He atom in helium gas at room temperature `(27^@C)` and 1 atm pressure, and compare it with the mean separation between two atoms under these conditions.

Find the typical de-Broglie wavelength associated with a H-atom in helium gas at room temperature (27^(@)C) and 1atm pressure, and compare it with the mean separation between two atom under these conditions.

Find the typical de-Broglie wavelength associated with a H-atom in helium gas at room temperature (27^(@)C) and 1atm pressure, and compare it with the mean separation between two atom under these conditions.

Estimate the average thermal energy of a helium atom at room temperature (27 ^@C)

The de Broglie wavelength associated with a nitrogen molecule at atmospheric pressure and temperature 27^@C will be nearly

Obtain the de-Broglie wavelength associated with thermal neutrons at room temperature (27^@C) . Hence explain why a fast neutron beam needs to be thermalized with the environment before it can be used for neutron diffraction experiments.

Obtain the de Broglie wavelength associated with thermal neutrons at room temperature (27^(@)C) . Hence explain why a fast neutron beam needs to be thermalised with the environment before it can be used for neutron diffraction experiments .

The de Broglie wavelength associated with a neutron at room temperature is 1.5 Å. The de Broglie wavelength of same at 327^@ C will be

Find the ratio of de Broglie wavelength of molecules of hydrogen and helium which are at temperatures 27^(@)C and 127^(@)C respectively