Natural Radioactivity was discovered by Becquerel in ____________?
Correct answer: B. 1896
- A. 1766
- B. 1896
- C. 1935
- D. 2001
Explanation
Henri Becquerel discovered natural radioactivity in 1896 while studying uranium salts. His observation preceded the later work of Marie and Pierre Curie.
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Everyday physics explains motion, force, work, power, pressure, heat, light, sound and electricity through familiar devices and natural events. Topics include simple machines, friction, expansion, reflection and refraction, lenses, household circuits, electrical safety and magnetism, with mass distinguished from weight and heat distinguished from temperature.
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