A wave has a frequency of 62 Hz and a speed of 25 m/s (a) What is the wavelength of this wave (b) How far does the wave travel in 20 seconds?

1 Answer
Feb 25, 2018

Wavelength is 0.403m and it travels 500m in 20 seconds.

Explanation:

In this case we can use the equation:
#v=flambda#
Where v is the velocity of the wave in meters per second, f is the frequency in hertz and #lambda# is the wavelength in meters.

Hence for (a):
25=62 #times lambda#
#lambda#=#(25/62)#=#0.403 m#

For (b)
Speed=(distance)/(time)

#25=d/(20)#
Multiply both sides by 20 to cancel the fraction.

#d=500m#