Draw a plot showing the variation of de-Broglie wavelength of electron as a function of its K.E.

Explanation

De-Broglie wavelenght `lambda=(h)/sqrt(2m K)`, i.e. `lambdaprop(1)/sqrt(K)`

where K is the K.E. of the moving electron.
The variation of K.E. (K) and de-Broglie wavelenth `(lambda)` is shown in figure given here.