Calculate the impact parameter of 5 MeV alpha particle scattered by `10^@` ,when it approaches a gold nucleus.

How is impact parameter related to the scattering angle?

What is impact parameters for scattering by 180^@ ?

Calculate the Coulomb.s force between two alpha particles separated by a distance of 3.2xx10^-15m

In Geiger-Marsden experiment,a 5 MeV alpha -particle is scattered through 180^@ from the gold foil.If the atomic number of gold is 79 ,find the distance of closet appraoch to the gold nucleus.

An alpha particle (_2He^4) is moving directly towards a stationary gold nucleus (_(79)Au^(197)) .The alpha -particle and the gold nucleus may be considered to be solid spheres with the charge and mass concentrated at the centre of each sphere.When the two spheres are just toching,the sepaation of their centres is 9.6 xx 10^(-15) m . the alpha particle and the gold nucleus may be assumed to be an isolatedd system.Calculate for the alpha particle just in contact with the gold nucleus, its electric potential energy.

What is the impact parameter at which the scattering angle is 90^@ of rZ=79 and alpha particle of initial kinetic energy of 10 MeV.

The distance of closest approach of an alpha particle gives an estimate of the size of the nucleus. Explain