অপটিক্যাল ফাইবারের সবচেয়ে ভিতরের অংশ কোনটি?
A. বাফার
B. ক্ল্যাডিং
C. জ্যাকেট
D. কোর
RUUnit-Bমানসিক দক্ষতা(IQ)ভাষাগত যৌক্তিক বিচার সামঞ্জস্যতা , অসামঞ্জস্যতা ও জ্ঞানমুলকIQ-9 (Topic Practice)RU - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
D.
কোর
Explanation:
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