Question

For a certain stretched string, three consecutive resonance frequencies are observed as 105, 175, 245 Hz respectively. Then select the correct alternatives(s) 

(a) The string is fixed at both ends 

(b) The string is fixed at one end only 

(c) The fundamental frequency is 35 Hz 

(d) The fundamental frequency is 52.5 Hz

Answer 1

Correct option: (b, c)

Explanation:

As f₁ : f₂ : f₃ = 3 : 5 : 7 is fixed at one end. Its fundamental frequency is