What are the de broglie frequencies and wavelengths of (a) an electron accelerated to 50 ev and (2 pts) (b) a proton accelerated to 50 ev? (2 pts)

Explanation:

(a) An electron accelerated from rest through a potential difference of 100 V. The De Broglie wavelength in terms of potential difference is given by :

Where

m and e are the mass of and charge on an electron

Here, eV = 50 eV

The frequency of electron is given by :

(b) The mass of the proton,

The De Broglie wavelength is given by :

The frequency of proton is given by :

Hence, this is the required solution.

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