QuestionDecember 21, 2025

Move the detector to the top center spotlight position at a 90^circ angle to the metal foil stand. 3. Observe the number of hits in this spotlight position as compared with the first detector position. There are more hits than in the prior location. There are just a few hits,every few seconds I don't see any hits in the new location.

Move the detector to the top center spotlight position at a 90^circ angle to the metal foil stand. 3. Observe the number of hits in this spotlight position as compared with the first detector position. There are more hits than in the prior location. There are just a few hits,every few seconds I don't see any hits in the new location.
Move the detector to the top center spotlight position at a 90^circ angle to the metal foil stand. 3. Observe the number of hits in this spotlight position as compared with the first detector position. There are more hits than in the prior location. There are just a few hits,every few seconds I don't see any hits in the new location.

Solution
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Answer

I don’t see any hits in the new location. Explanation 1. Identify the context The setup describes a classic Rutherford scattering experiment, where a detector measures scattered alpha particles at various angles relative to a metal foil. 2. Recall expected scattering pattern Most alpha particles pass straight through (at or near 0^\circ) with very few deflected at large angles (like 90^\circ) because nuclei occupy very little space. 3. Predict observation at 90^\circ At 90^\circ, scattering probability is extremely low, so only rare detections would occur — if any at all.

Explanation

1. Identify the context<br /> The setup describes a classic Rutherford scattering experiment, where a detector measures scattered alpha particles at various angles relative to a metal foil.<br /><br />2. Recall expected scattering pattern<br /> Most alpha particles pass straight through (at or near $0^\circ$) with very few deflected at large angles (like $90^\circ$) because nuclei occupy very little space.<br /><br />3. Predict observation at $90^\circ$<br /> At $90^\circ$, scattering probability is extremely low, so only rare detections would occur — if any at all.
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