Question 4 (7 marks) A guitar string is 90 cm long and has a mass of 3.6 g. The distance from the bridge to the support post (i.e. the effective length of the string) is L = 62 cm, and the string is under a tension of 520 N. a) Determine the speed at which transverse waves move on the string. b) Find the fundamental frequency of the string. c) What would happen to i) the wavelength of the fundamental mode of the string, and ii) the fundamental frequency of the string, if the tension in the string were reduced, with all other properties of the guitar kept fixed? Explain. a) 2 b) 1 c) i) 1: INCREASES DECREASES REMAINS THE SAME ii) f. INCREASES DECREASES REMAINS THE SAME EXPLANATION: 4