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#10392 Bangla Language & Literature General Level 0

দুটি সুরেলী কাটার কম্পাঙ্ক 220 Hz ও 210 Hz । যদি সুরেলী কাঁটা দুটি একত্রে শব্দ তৈরি করে তবে প্রতি সেকেন্ডে উৎপন্ন বীট সংখ্যা হবে-

  1. A 10
  2. B 210
  3. C 220
  4. D 430
Answer: A - 10

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