What do you mean by de Broglie wavelength?

de-Broglie wavelength lambda is

find the de Broglie's wavelength.

Explain what do you understand by the de Broglie wavelength of an electron. Will an electron at rest have an associated de Broglie wavelength? Justify your answer.

The de-Broglie wavelength lamda

A proton and a deuteron have the same velocity, what is the ratio of their de Broglie wavelengths ?

The wavelength associated with a photon and the de Broglie wavelength of a moving electron are equal. If they carry the same amount of energy, what is the value of this wavelength?

What is the de Broglie wavelength

The de-Broglie wavelength lambda

The de Broglie wavelength of an neutron corresponding to root mean square speed at 927^(@) is lambda . What will be the de Broglie wavelength of the neutron corresponding to root mean square speed at 27^(@)C ?