Question

. A sinusoidal wave travels along a string. The time for a particular point to move from

maximum displacement to zero is 0.170 s. What are the (a) period and (b) frequency? (c)

The wavelength is 1.40 m. what is the wave speed?

Answer 1

$t = 0.17s$

$(a) T = t*4 = 0.17*4 = 0.68s$

$(b) f = \frac{1}{T}= \frac{1}{0.68}= 1.47Hz$

$(c) \lambda = 1.4m$

$\lambda = vT$

$v= \frac{\lambda}{T}= \frac{1.4}{0.68}= 2.06\frac{m}{c}$

$\text{Answer:}$

$(a) T = 0.68s$

$(b) f = 1.47Hz$

$(c) v= 2.06\frac{m}{c}$