Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 17: Q. 15 (page 483)

FIGURE EX17.15 shows a standing sound wave in an 80-cm-long tube. The tube is filled with an unknown gas. What is the speed of sound in this gas?

Short Answer

Expert verified

The speed of sound in the gas is400m/s.

Step by step solution

01

Given information

A standing sound wave in an 80-cm-long tube is shown below

02

Speed of sound in gas

At the ends of the tube, the gas molecules exhibit maximum displacement, resulting in antinodes at the ends.

There is another antinode in the middle of the tube.

Thus, this is the m=2mode and the wavelength of the standing wave is equal to the length of the tube, that is, λ=0.80m

The relation between wavelength, frequency, and speed of the wave is given by v=fλ.

Substitute the given values

v=500×0.80=400m/s

Therefore, the speed of sound in the gas is400m/s.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Two in-phase speakers 2.0 m apart in a plane are emitting 1800 Hz sound waves into a room where the speed of sound is 340 m/s. Is the point 4.0 m in front of one of the speakers, perpendicular to the plane of the speakers, a point of maximum constructive interference, maximum destructive interference, or something in between?

FIGURE EX17.1 is a snapshot graph at t = 0 s of two waves approaching each other at 1.0 m/s. Draw six snapshot graphs, stacked vertically, showing the string at 1 s intervals from t = 1 s to t = 6 s

Two out-of-phase radio antennas at x = ±300 m on the x-axis are emitting 3.0 MHz radio waves. Is the point (x, y) = (300 m, 800 m) a point of maximum constructive interference, maximum destructive interference, or something in between

Analyze the standing sound waves in an open-closed tube to show that the possible wavelengths and frequencies are given by Equation 17.18.

FIGURE Q17.9 shows the circular waves emitted by two in-phase sources. Are a, b, and c points of maximum constructive interference, maximum destructive interference, or in between?
See all solutions

Recommended explanations on Physics Textbooks

Modern Physics

Read Explanation

Conservation of Energy and Momentum

Read Explanation

Oscillations

Read Explanation

Mechanics and Materials

Read Explanation

Electromagnetism

Read Explanation

Force

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free