question_answer 45)

                  A sonometer wire is vibrating in resonance with a tuning fork. Keeping the tension applied same, the length of the wire is doubled. Under what conditions would the tuning form still be is resonance with the wire?

Answer:

                    Frequency of a vibrating string of length string of length L, when vibrates is fundamental made is given by \[v=\frac{\upsilon }{2L}=\] frequency of tuning fork. Tuning fork will be in resonance with the string, the length of the vibrating is 2L.