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#6123 Bangla Language & Literature বিজ্ঞানীদের অবদান Level 33730

ইউরেনিয়াম এর তেজস্ক্রিয়াতা আবিষ্কার করেন-

  1. A এাদাম কুরী
  2. B ওন্টজেন
  3. C বেকরেল
  4. D হেনরিখ হার্জ
Answer: C - বেকরেল

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