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
25 exam-style questions on AQA A Level Physics Progressive and stationary waves, covering Progressive waves, Longitudinal and transverse waves, and Principle of superposition of waves and formation of stationary waves. Each one has a worked solution and a mark scheme showing where the marks go.