If v is the speed of sound in air, then the shortest length of the closed pipe

⇦

⇨

If v is the speed of sound in air, then the shortest length of the closed pipe which resonates to a frequency n

Options

(a) v / 4n
(b) v / 2n
(c) 2n / v
(d) 4n / v

Correct Answer:

v / 4n

Explanation:

For closed pipe, l = λ/4 in fundamental mode when the length is shortest.
v = nλ ⇒ v = n × 4l ⇒ l = v/4n

Related Questions:

1. A particle of mass ‘m’ is kept at rest at a height 3R from the surface of earth
2. A car sounding a horn of frequency 100 Hz passes an observer. The ratio
3. When we hear a sound, we can identify its source from
4. The focal lengths of a converging lens are fᵥ and fᵣ for violet and red lights
5. MA⁻¹T⁻² is the dimensional formula of

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