The distance oif closest approach of an alpha-particle fired towards a nucleus with momentum p is r. What will be the distance of closest approach when the momentum of alpha-particle is `2p`?

The distance of closest approach of an alpha-particle fired towards a nucleus with momentum p is r. What will be the distance of closest approach when the momentum of alpha-particle is 2p ?

The distance of closest approach of an alpha -particle fired at nucleus with momentum p is d. The distance of closest approach when the alpha -particle is fired at same nucleus with momentum 3p will be

The distance of closest approach of an alpha -particle fired at nucleus with momentum p is d. The distence of closest approach when the alpha -particle is fired at same nucleus with momentum 3p will be

The distance of the closest approach 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 fire at the same nucleus with kinetic energy 2K will be