Godl foil used in Geiger-marsden experiment is about `10^(-8)` in thick. This ensures

Options

A. gold foil's gravitational pull is small or possible
B. gold foil is deflected when `alpha`-particle stream is not incident centrally over it
C. gold foil provides no resistance to passage of `alpha`-particles
D. an `alpha`-particle will suffer not more than one scattering during passage through gold foil

Answer

D

Explanation

The scattering data analysed by employing rutherford's nuclear model of the atom. As the gold foil is very thin, it can be assumed that `alpha`-particles will suffer not more than one scattering during their passage through it. Therefore, computation of the trajectory of an alpha-particle scattered by a simple nucleus is enough.