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রেডিও কে আবিষ্কার করেন ?

Ferdows blog

প্রশ্নঃ রেডিও কে আবিষ্কার করেন ?

প্রশ্নঃ রেডিও এর আবিষ্কারক কে ?

ক. মার্কনি

খ. চার্লস ব্যাবেজ

গ. জন লগি বায়ার্ড

ঘ. জনভন নিউম্যান

উত্তরঃ মার্কনি

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