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The kinetic energy of sub-atomic particl...

The kinetic energy of sub-atomic particle is `5.85 xx 10^(-25)`J. Calculate the frequency of the particle wave. (Planck’s constant, `h = 6.626 xx 10^(-34)` Js)

Text Solution

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`K.E = 1/2 mv^2 = 5.85 xx 10^(-25) J`
By de-broglie equation ` lamda = (h)/(mv)`
` lamda = (v)/(upsilon)`
` therefroe v/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)`
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