Answer the following question , which help you understand the difference between Thomson's model and Rutherford's model better.
Keeping other factors fixed, it is found experimentally that for small thickness t, the number of `alpha` - particles scatterd at moderate angles is proportional to t. What due does this linear dependence on t provide ?

Explanation

Linear dependence of the number is of `alpha` - particles scattered at moderate angle with thickness of glod foil suggest that scattering is predominantly due to single collision. Changes of single collision increase linearly with the number of target atoms and hence linearly with thickness of glod foil.