KCET2025PhysicsNuclear Physics
Which of the following statements is incorrect with reference of 'Nuclear force'?
Options
- ANuclear force becomes attractive for nucleon distances larger than 0.8 fm
- BNuclear force becomes repulsive for nucleon distances less then 0.8 fm
- CNuclear force is always attractive
- DPotential energy is minimum, if the separation between the nucleons is 0.8 fm
Correct answer
C. Nuclear force is always attractive
Step-by-step solution
The strong nuclear force is generally attractive but becomes repulsive at very short distances (less than 0.7 fm). While it's primarily an attractive force, this repulsion at close range prevents the nucleus from collapsing due to the constant attraction.