What is the size of nucleus with Z=29 when an alpha particle of 12.5MeV kinetic energy retrace its path on colliding with the nucleus?

Determine the distance of closest approach when an alpha particle of kinetic energy 4.5 MeV strikes a nucleus of Z = 80, stops and reverses its direction.

What is the distance of closest approach to the nucleus for an alpha -particle of energy 5 MeV which undergoes scattering in the Gieger-Marsden experiment.

The distance of the closest approach of an alpha particle fired at a nucleus with kinetic of an alpha particle fired at a nucleus with kinetic energy K is r_(0) . The distance of the closest approach when the alpha particle is fired at the same nucleus with kinetic energy 2K will be

When an alpha particle is emitted from a nucleus, its

A stationary thorium nucleus (A = 220, z=90) emits an alpha particle with kinetic energy E_(alpha) . What is the kinetic energy of the recoiling nucleus?

A stationery thorium nucleus (A=200 , Z=90) emits an alpha particle with kinetic energy E_(alpha) . What is the kinetic energy of the recoilling nucleus

A stationary thorium nucleus (A=200 , Z=90) emits an alpha particle with kinetic energy E_(alpha) . What is the kinetic energy of the recoiling nucleus