Question

A woman is standing in the ocean, and she notices that after

Answer 1

Answer:

Period, T = 10.86 seconds  

Frequency, f = 0.092 Hz  

Wavelength, $\lambda=39.257883151578\ m$          

Speed, v = 3.61 m/s                                                        

Explanation:

It is given that,

A woman notices that a wave crest passes by, five more crests pass in a time of 54.0 .

The distance between two successive crests is, the wavelength of wave, $\lambda=39.257883151578\ m$

(b)Frequency of a wave is given by number of oscillations per second such that,

$f=\dfrac{n}{t}$

$f=\dfrac{5}{54}$

f = 0.092 Hz

(a) Let T is the period of the wave. It is inverse of frequency of a wave such that,

$T=\dfrac{1}{f}$

$T=\dfrac{1}{0.092}$

T = 10.86 seconds

(c) The distance between two successive crest or trough is called wavelength of a wave, $\lambda=39.257883151578\ m$.

(d) The speed of a wave is given by :

$v=f\lambda$

$v=0.092\times 39.257883151578$

v = 3.61 m/s

Hence, this is the required solution.