Which of the following statements is/are correct regarding Rutherford scattering experiment?

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Most of the $α$ –particles passed through the gold foil being undeflected

A small fraction of the $α$ -particles was deflected by small angles

All of the above

one in many will exactly retrace its path.

answer is D.

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Detailed Solution

Observations of Rutherford scattering experiment are

I. Most of the $α$ –particles passed through the gold foil remain undeflected.

II. A small fraction of the $α$ -particles were deflected by small angles.

III. A very few $α$ -particles (~/in 20000) bounced back, i.e., they were deflected by nearly 180°.

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