Question

5. Which of the following was invented by Thomas Aiva Edison ?
निम्न में से कौन से अविष्कार थॉमस अलवा एडिसन द्वारा किया गया है?
(a) Incandescent lamp/तापदीप्त लैंप
(b)Phonograph and Microphone/फोनोग्राफ एवं माईक्रोफोन
(c)Carbon telephone transmitters/ कार्बन टेलीफोन ट्रांसमीटर
(d)All of theabove/ इनमें से सभी​

Answer 1

Answer:

b

Explanation:

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Answer 2

Answer:

Thomas Edison | Biography, Early Life, Inventions, & Facts | Britannica

Though he is best known for his invention of the phonograph and incandescent electric light, Edison took out 1,093

Explanation:

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