Aditi Chauhan
Last Activity: 10 Years ago
Hello Student,
Please find the answer to your question
First overtone frequency
ℓ 0 = ℷ
⇒ (v1)0 = v/ℷ’ = v/ ℓ0 = 330/ ℓ0
Fundamental frequency
ℓc = ℷ1/4 ⇒ ℷ1 = 4 ℓc
⇒ (v1)c = v 4 ℓc = 10 Hz (given)
But beat frequency is 2.2
Case 1 : (v1)0 > (v1)c
(v1)0 - (v1)c = 2.2
⇒ 330/ℓ0 – 330 = 2.2 ⇒ ℓ0 = 0.9933 m
Case 2 : (v1)0 < (v1)c
(v1)0 - (v1)c = 2.2
330 – 330/ℓ0 = 2.2 ⇒ ℓ0 = 1.006 m
Thanks
Aditi Chauhan
askIITians Faculty