GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following inventions were done by Thomas Alva Edison?
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Incandescent lamp
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Phonograph C (Gramophone) and microphone
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Carbon telephone transmitters
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All of the above
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Explanation:
Detailed explanation-1: -One of the most famous and prolific inventors of all time, Thomas Alva Edison exerted a tremendous influence on modern life, contributing inventions such as the incandescent light bulb, the phonograph, and the motion picture camera, as well as improving the telegraph and telephone.
Detailed explanation-2: -Thomas Edison created many inventions, but his favorite was the phonograph. While working on improvements to the telegraph and the telephone, Edison figured out a way to record sound on tinfoil-coated cylinders.
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