| ⇦ | 
| ⇨ |
When a string is divided into three segments of length l₁, l₂ and l₃ the fundamental frequencies of these three segments are v₁, v₂ and v₃ respectively. The original fundamental frequency (v) of the string is
Options
(a) √v = √v₁ + √v₂ + √v₃
(b) v = v₁ + v₂ + v₃
(c) 1/v = 1/v₁ + 1/v₂ + 1/v₃
(d) 1/ √v = 1/ √v₁ + 1/ √v₂ + 1/ √v₃
Correct Answer:
1/v = 1/v₁ + 1/v₂ + 1/v₃
Explanation:
Fundamental frequency is given by v = 1/ 2l √(T / µ)
⇒ v ∞ 1/ l ⇒ P ∞ 1 / v Since, P divided into l₁, l₂ and l₃ segments.
Here, l = l₁ + l₂ + l₃
So, 1/v = 1/v₁ + 1/v₂ + 1/v₃
Related Questions: - Charge passing through a conductor of cross-section area A=0.3 m² is given
- Two coherent sources of different intensities send waves which interfere.
- The mean radius of the earth is R, its angular speed on its own axis is ?
- Which of the following will be σ if Y=2.4 η?
- In one dimensionsal motion,instantaneous speed v statisfies 0⦤v⦤vₒ
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Charge passing through a conductor of cross-section area A=0.3 m² is given
- Two coherent sources of different intensities send waves which interfere.
- The mean radius of the earth is R, its angular speed on its own axis is ?
- Which of the following will be σ if Y=2.4 η?
- In one dimensionsal motion,instantaneous speed v statisfies 0⦤v⦤vₒ
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply