Which experiment is Ernest Rutherford well known for performing in 1911?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. Gold foil experiment.
Ernest Rutherford is famously known for conducting the gold foil experiment in 1911, which revolutionized the understanding of atomic structure. In this experiment, alpha particles were directed at a very thin sheet of gold foil. While most particles passed through, some were deflected at large angles, leading Rutherford to conclude that atoms consist of a tiny, dense, positively charged nucleus surrounded by electrons. This discovery disproved the earlier plum pudding model and laid the foundation for modern nuclear physics.