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#56175 Bangla Language & Literature পদার্থ বিজ্ঞান Level 0

গোয়েন্দা বিভাগে নিম্নের কোন রশ্মি ব্যাবহৃত হয়?

  1. A x- রশ্মি
  2. B গামা রশ্মি
  3. C বিটা রশ্মি
  4. D বেকেরেল রশ্মি
Answer: A - x- রশ্মি

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