An electron and an alpha particle have same kinetic energy. How are the de Broglie wavelengths associated with them related ?

An electron and an alpha particle have the same kinetic energy. How are the de-Broglie wavelengths associated with them related?

A proton and an alpha - particle have kinetic energy in the ratio 16:1. The ratio of de-Broglie wavelength associated with them is ........... .

An electron, a neutron and an alpha particle have same kinetic energy and their de-Broglie wavelength are lambda_e, lambda_n and lambda_(alpha) respectively. Which statement is correct about their de-Broglie wavelengths?

An electron, a neutron and an alpha particle have same kinetic energy and their de-Broglie wavelength are lambda_e, lambda_n and lambda_(alpha) respectively. Which statement is correct about their de-Broglie wavelengths?