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. In stretching a spring by 2 cm, energy stored is given by U. Had is been stretched
2. The ratio of specific charge of an α-particle to that of a proton is
3. Imagine a new planet having the same density as that of earth but it is 3 times bigger
4. Heat is supplied at constant pressure to diatomic gas. The part of this heat that goes
5. The rms current in an AC circuit is 2 A. If the wattless current be √3 A,

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