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Question

Alpha particle scattering experiment gave totally unexpected results. Which of the following observations were made?


A

Most of the fast moving alpha particles passed straight through the gold foil

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B

Some of the alpha particles were deflected by the foil at small angles

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C

Very small amount of particles (one out of every 12000 particles) appeared to rebound

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D

All of these

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Solution

The correct option is D

All of these


Alpha particle scattering experiment gave totally unexpected results. Following observations were made:

Most of the fast moving alpha particles passed straight through the gold foil. Some of the alpha particles were deflected by the foil by small angle. One out of every 12000 particles appeared to rebound.

The image shows the scattering of alpha particles.


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