For a travelling wave on a string

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

For a travelling wave on a string, the

y

–

t

graph at a fixed point shows successive maxima at

t = 0

and

t = 0.01\,\text{s}

. The

y

–

x

graph at the same instant displays successive troughs separated by

0.35\,\text{m}

. The wave speed is (a)

70\,\text{m\,s}^{-1}

(b)

17.5\,\text{m\,s}^{-1}

(c)

35\,\text{m\,s}^{-1}

(d)

3.5\,\text{m\,s}^{-1}