Progressive and stationary waves

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Question 4
Medium

Which combination of length and diameter for the second string would result in a first-harmonic (fundamental) frequency that is exactly half the first-harmonic frequency of the first string?

Length: 2L2L2L, Diameter: 2D2D2D

Length: 4L4L4L, Diameter: D2\frac{D}{2}2D​

Length: LLL, Diameter: D2\frac{D}{2}2D​

Length: L2\frac{L}{2}2L​, Diameter: 2D2D2D

Progressive and stationary waves Questions

  1. A Level
  2. /Physics
  3. /Progressive and stationary waves