A 4MeV alpha particle is scattered by `20^@`, when it approaches a gold nucleus. Calculate the impact parameter if Z for gold is 79.

In a Geiger-Marsden experiment, an alpha -particle of kinetic energy 4 MeV is scattered by 8^@ while approaching towards gold (Z =79) nucleus. Calculate impact parameter.

Calculate the impact parameter of a 5MeV alpha particle scatterd by 10^@ when it approaches a gold nucleus. Take Z=79 for gold.

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

Calculate the impact parameter of a 6 MeV particle scattered by 60^@ when it approaches a gold nucleus.

Calculate the impact parameter of a 5 MeV particle scattered by 90^(@) when it approaches a gold nucleus.

Calculate the impact parameter of a 5 MeV particle scattered by 90^(@) when it approaches a gold nucleus.

Calculate the impact parameter of 5.0 MeV alpha -particle scattered by 10^(@) when it approaches a gold nuclcus (Z = 79).