Question

The distance b/n crest and thought is 75 cm if the frequency of the wave is 20 HZ find the speed wave

Answers

GPT 3.5
To find the speed of the wave, we need to use the formula:

Speed of wave = frequency * wavelength

First, we need to find the wavelength of the wave. The distance between two consecutive crests (or troughs) is the wavelength. In this case, the distance between crest and trough is given as 75 cm. However, a full wavelength would be from crest to crest or trough to trough, so the wavelength is half of this distance.

Wavelength = 75 cm / 2 = 37.5 cm = 0.375 m

Now, we can calculate the speed of the wave:

Speed = 20 Hz * 0.375 m = 7.5 m/s

Therefore, the speed of the wave is 7.5 m/s.