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MHT CET202014 Oct 2020Morning ShiftPhysicsWaves and SoundActual

Two open organ pipes of fundamental frequencies n ₁ and n ₂ are joined in series. The fundamental frequency of the new pipe is

Options

  1. An ₁- n ₂
  2. Bn₁ n₂ (n₁+n₂ )
  3. C1 n₁ n₂
  4. Dn₁+n₂ n₁ n₂

Correct answer

B. n₁ n₂ (n₁+n₂ )

Step-by-step solution

n = V 2 ₁ ₁= V 2 n ₁ n ₂= V 2 ₂ ₂= V 2 n ₂ n = V 2 = V 2 n = ₁+ ₂ V 2 n = V 2 n ₁ + V 2 n ₂ 1 n = 1 n ₁ + 1 n ₂ n = n ₁ n ₂ n ₁+ n ₂

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