AP EAMCET · PHYSICS · Waves and Sound
The fundamental frequency of an open pipe is 100 Hz . If the bottom end of the pipe is closed and \(\frac{1}{3} \mathrm{rd}\) of the pipe is filled with water, then the fundamental frequency of the pipe is
- A 200 Hz
- B 100 Hz
- C 75 Hz
- D 150 Hz
Answer & Solution
Correct Answer
(C) 75 Hz
Step-by-step Solution
Detailed explanation
For open organ pipe, \(\gamma_0=\frac{v}{2 L}=100 \mathrm{~Hz}\) For closed organ pipe \(\begin{aligned} & \frac{2 \mathrm{~L}}{3}=\frac{\lambda}{4} \\ & \therefore \quad \lambda=\frac{8 \mathrm{~L}}{3} \end{aligned}\) \(\therefore\) Fundamental frequency…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- Assertion (A) In S.H.M kinetic and potential energy become equal when the distance is \(1 / \sqrt{2}\) times its amplitude. Reason (R) The potential energy of a particle executing S.H.M is periodic with time period being maximum at the extreme displacement.AP EAMCET 2022 Hard
- The average kinetic energy of \(\mathrm{H}_2\) molecules at \(300 \mathrm{~K}\) is \(E\). At the same temperature the average kinetic energy of \(\mathrm{O}_2\) molecule isAP EAMCET 2020 Easy
- Assertion (A) At critical temperature, surface tension of liquids become zero.
Reason (R) At critical temperature, intermolecular forces for liquids and gases become equal.AP EAMCET 2021 Medium - If two linear antennas having lengths in the ratio \(2: 3\) are emitting radiation of wavelengths in the ratio \(8: 9\), then the ratio of effective powers radiated by them are in the ratioAP EAMCET 2017 Easy
- The acceleration due to gravity at a height of \((\sqrt{2}-1) \mathrm{R}\) from the surface of the earth is
(Acceleration due to gravity on the surface of the earth \(=10 \mathrm{~m} \mathrm{~s}^{-2}\) and R is radius of the earth)AP EAMCET 2025 Medium - If the average kinetic energy of a gas molecule at \(27^{\circ} \mathrm{C}\) is \(3.3 \times 10^{-20} \mathrm{~J}\), then the average kinetic energy of the gas molecules at \(127^{\circ} \mathrm{C}\) isAP EAMCET 2023 Medium
More PYQs from AP EAMCET
- The mean deviation about the mean for the following data:
AP EAMCET 2022 Medium - A magnet of magnetic moment \(2 \mathrm{~J} \mathrm{~T}^{-1}\) is aligned in the direction of magnetic field of \(0.1 \mathrm{~T}\). What is the net work done to bring the magnet normal to the magnetic field?AP EAMCET 2021 Medium
- Match the following
AP EAMCET 2018 Easy - Consider the following reaction
Which of the following statements are correct ?
a. I is the major product of the reaction
b. II is the major product of the reaction
c. Formation of I is in accordance with Saytzeff's rule
d. II is more stable because it is more substitutedAP EAMCET 2017 Medium - A \(0.6 \%\) solution for urea (molecular mass \(=60)\) would be isotonic withAP EAMCET 2021 Easy
- Identify the correct statements from the following.
I. At \(0 \mathrm{~K}\), the entropy of pure crystalline materials approach zero.
II. Entropy for the process, \(\mathrm{H}_2 \mathrm{O}(\mathrm{l}) \longrightarrow \mathrm{H}_2 \mathrm{O}(\mathrm{g})\) decreases.
III. Gibb's energy is a state function.AP EAMCET 2022 Easy