Important Inventions and Discoveries in World – 15

Important Inventions and Discoveries in World » Exercise – 1

15. Who invented the phonograph?

(a) Thomas Edison
(b) John Kruesi
(c) Jules Levy
(d) Alexander Graham Bell

Answer
Answer : (b)
Explanation
Explanation : John Kruesi was a mechanic for Edison, and Kruesi built the phonograph. Edison designed it, and later improved the phonograph.
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