Distance of closest approach (Relative velocity)

A neutron of energy 1 MeV and mass 1.6 xx 10^(-27) kg passes a proton at such a distance that the angular momentum of the neutron relative to the proton approximately equals 10^(-33) J s . The distance of closest approach neglecting the interaction between particles is

Distance of closest approach when a 5.0MeV proton approaches a gold nucleus is (Z=79)

(a) Define the distance of closest approach. A alpha -particle of kinetic energy K is bombarded on a thin gld foil. The distance of the closest approach is r_(a) . What will be the distance of closest approach for an alpha -particle of double the kinetic energy ? (b) Show that the radius of the orbit of an electron in hydrogen atoms varies as n^(2) , where n is the principal quantum number of the atom.

A solid A^(+)B^(-) has a body centred cubic structure. The distance of closest approach between the two ions is 0.767Å .The edge length of the unit cell is

A solid has a b.c.c. structure . If the distance of closest approach between the two atoms is 1.73 Å . The edge length of the cell is :

Define the distance of closest approach. An alpha -particle of kinetic enegy 'K' is bombarded on a thin gold foil. The distance of the closest approach is 'r' . What will be the distance of closest approach for an alpha -particle of double the kinetic energy ?

A solid AB has CsCl -type structure. The edge length of the unit cell is 404 pm. Calculate the distance of closest approach between A^(o+) and B^(Θ) ions.

An alpha - particle after passing through a potential difference of V volts collides with a nucleus . If the atomic number of the nucleus is Z then the distance of closest approach of alpha – particle to the nucleus will be

STATEMENT - 1 : In rock salt structure, all the octahedral voids in the close packing of anions are occupied by cations. and STATEMENT - 2 : In rock salt structure, the distance of closest approach between two anions equal to half the face diagonal of the unit cell.

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 ?