The kinetic energy of a subatomic particle is `5.85 xx 10^(-25) J`. Calculate the frequency of the particle wave.

Explanation

K.E. `= (1)/(2) mv^(2) = 5.85 xx 10^(-25) J`
By de Broglie equation, `lamda = (h)/(mv)`
But `lamda = (u)/(v) :. (u)/(v) = (h)/(mv) or v (mv^(2))/(h) = (2 xx 5.85 xx 10^(-25)J)/(6.626 xx 10^(-34) Js) = 1.77 xx 10^(9) s^(-1)`