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प्रश्न
What was the purpose of the zinc sulphide fluorescent screen?
विकल्प
To contain the radioactive source
To detect scattered alpha-particles
To keep the nucleus stationary
To provide a narrow beam of alpha-particles
MCQ
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उत्तर
The zinc sulphide fluorescent screen detected scattered alpha-particles through scintillations. A microscope was used to observe those scintillations.
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