I have three questions which I gave my answers to, please can someone tell me if I am correct, thanks: 1. What happens to the wavelength of a wave on a string when the frequency is doubled? A: Wavelength = V / f so, if frequency is doubled then wavelength is halved correct? 2. What happens to the speed of a wave on a string when the frequency is doubled? A: V = (f)(wavelength),so if frequency is doubled, speed is also doubled correct? 3. If a clock were running slow, how could one adjust the length of the pendulum to correct the time. A: shorten the length of the pendelum, correct?