An alpha particle with kinetic energy `10 Me V` is heading toward a stationary tin nuclcus of atomic number 50. Calculate the distance of closest approach (Fig . 3.23).
.

Explanation

`:. T E_(A)= T E _(B)`
`:. 10 xx 10^(6) e = ( K xx (2e) ( 50 e ))/( r_(0))`

`r_(0) = 1.44 xx 10^(-14) m`
`r_(0) = 1.44 xx 10^(-4) A`