state gov BSSC Laboratory Assistant Mock Test Series 2025 Physics Atoms Rutherford’s Nuclear Model of Atom
In a Rutherford scattering experiment when a projectile of charge Z1 and mass M1 approaches a target nucleus of charge Z2 and mass M2, the distance of closest approach is r0. The energy of the projectile is
1
directly proportional to Z1Z2
2
inversely proportional to Z1
3
directly proportional to mass M1
4
directly proportional to M1 × M2