A crest of a progressive wave is observed at at and at at

PHYSICS · Multi-part · A Level · Physics · Waves · Waves

Problem

A crest of a progressive wave is observed at

x = 0\,\text{m}

t = 0.000\,\text{s}

and at

x = 1.20\,\text{m}

t = 0.0060\,\text{s}

. At

t = 0

, a snapshot of the string shows exactly six complete wavelengths spanning a length of 3.6 m. (a) Speed (b) Wavelength (c) Frequency