The frequency of the first harmonic of a standing wave on a string is fff. The tension in the string is TTT. The tension is increased to 16T16T16T without changing the length or mass of the string. Which harmonic has a frequency of 12f12f12f after this change?
first
second
third
fourth
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.