What possibly can ratio be of the de-Broglie wavelengths for two electrons having the same initial energy and accelerated through 200 volts and 50 volts?

The de-Broglie wavelength associated with an electron having a kinetic energy of 10 eV is

What possibly can be the ratio of the de Broglie wavelength for two electrons each having zero initial weighing 200 g and moving at a speed of 5m//hr of the order of.

What is the de-Broglie wavelength associated with an electron moving with an electron, accelerated through a potential difference of 100 volt?

What is Broglie wavelength of an electron accelerated through 25000 volt ?

What is the ratio of the de Broglie wavelength for electrons accelerated through 50 volts and 200 volts?

The ratio of de-Broglie wavelength associated with two electrons accelerated through 25V and 36V is

If a proton and electron have the same de Broglie wavelength, then

What will be the ratio of de - Broglie wavelengths of proton and alpha - particle of same energy ?