Question

A water wave of wavelength 859 cm travels a distance of 64 m in a time of 14 s. What is the period of the wave, in units of seconds?

Answer 1

1.87 s

Step-by-step explanation:

d = distance traveled by the water wave = 64 m

t = time taken to travel the distance = 14 s

`v` = speed of water wave

Speed of water wave is given as

`v=(d)/(t)`

`v=(64)/(14)`

`v` = 4.6 m/s

`\lambda` = wavelength of the wave = 859 cm = 8.59 m

T = period of the wave

period of the wave is given as

`T = (\lambda )/(v)`

`T = (8.59 )/(4.6)`

T = 1.87 s