Alpha particles were fired at a thin gold foil in 1909. Those results were analysed using:
AMagnet maps
BMelting heat
CMirror rays
DMomentum rules
Answer & Solution
Correct answer: D. Momentum rules
1. The particles bounced off gold atoms.
2. Each bounce is a collision problem.
3. So momentum conservation was used.
_Source: OpenStax University Physics Volume 1, Chapter 9, Linear Momentum and Collisions._
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