Solve the all part of given question:
Question: A cord of length 1.3 m is fixed at both ends. Its mass per unit length is 1.1 g/m and the tension is 12 N.
Question 1: What is the frequency of the fundamental oscillation?
Hz
Question 2: What tension is required if the n = 3 mode has a frequency of 0.60 kHz?
N
Please show how you obtained the answer.