In Rutherford's experiment, generally the thin foil of heqavy atoms, like gold, platinum etc, have been used to be bombared by the `alpha`- particles. If the thin foil of light atoms like aluminium etc. is used, what difference would be observed from the above results?

Give the scientific reason : In Rutherford's experiment, some alpha particles colliding with the thin gold foil are turned back.

Why is a very thin gold foil used in the alpha scattering experiment?

Question based on paragraph Students were taken to observe the crop cultivation in a potato farm in Maharashtra. The students observed that the yield of crops in Mr. Shyam's potato farm was more than that in his neighbour Bharat’s potato farm. Mr. Shyam was using a different variety of the crop, which he suggests has been disease-free ever since he planted the seeds. Based on the above passage, answer the given question Apart from improved yield what added advantage did Mr. Shyam’s crops have?