Two ropes are identical. A wave traveling through the first rope has a frequency of 1.5 hertz and a wavelength of 6 meters. What is the frequency of a wave in the second rope if its wavelength is 2 meters?
3 hertz
9 hertz
4.5 hertz
1.5 hertz
9 hertz
The frequency of a wave is inversely proportional to its wavelength. Since the wavelength of the second rope is 1/3 of the wavelength of the first rope, the frequency of the second rope will be 3 times that of the first rope. Therefore, the frequency of the wave in the second rope would be 3 x 1.5 hertz = 4.5 hertz.