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1. Path difference(α) এবং Phase difference (σ) এর ক্ষেত্রে কোনটি সঠিক?

  • A. α=λσ/2π
  • B. α=λσ/2π
  • C. α=λσ/2π
  • D. α=λσ/2π

Answer: Option A

Explanation:

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