A harmonic wave is traveling along a rope. the oscillator that generates the wave completes 46.0 vibrations in 26.0 s. a given crest of the wave travels 415 cm along the rope in a time period of 11.7 s. what is the wavelength? answer in units of m.

The crest of the wave has traveled 415 cm in 11.7s. then the crest should have travelled 415/11.7 cm in one second i. e. 35.47cm. Then the crest should have travelled 26*35.47 cm in 26 seconds i. e. 922.2cm which has 46 vibrations in it.

so for length of each vibration (Wavelength) is 20 cm