CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1 · Question Q25
Which of the following is NOT a condition necessary for the formation of stationary waves from two progressive waves?
- (A)Progressive waves must be superimposed
- (B)Progressive waves must be travelling in opposite directions
- (C)Progressive waves must be of the same amplitude and frequency
- (D)The distance between the sources of progressive waves must be a whole number of wavelengths
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