Why did a very small fraction (~1 in 12,000) of alpha particles bounce straight back in Rutherford's experiment?

Type: MCQ • Marks: 1

A. They hit electrons

B. They collided directly with a massive, dense positive nucleus

C. They were absorbed

D. Magnetic repulsion

Explanation

Direct head-on collisions with the dense, heavy nucleus caused 180° rebounds.

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Class 9th Science (MCQ)

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