In the Geiger-Marsden experiment,which of the following is used to calculate the trajectory of the $\alpha$-particle?

In Rutherford's $\alpha$-particle scattering experiment,which of the following was discovered?

According to classical theory,the Rutherford atom was:

Rutherford's $\alpha$-particle experiment showed that the atoms have

An $\alpha$-particle of energy $4 \text{ MeV}$ is scattered through $180^\circ$ by a fixed uranium nucleus. The distance of the closest approach is of the order of

$A$ beam of fast-moving alpha particles was directed towards a thin gold foil. The parts $A, B$,and $C$ of the incident beam and their corresponding transmitted or reflected parts $A^{\prime}, B^{\prime}$,and $C^{\prime}$ are shown in the adjoining diagram. The number of alpha particles in: