/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 51 Doppler effect can be observed f... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 9: Problem 51

Doppler effect can be observed for the following case (s) (A) Supersonic speed (B) Ultrasonic waves (C) Both of these (D) None of these

Short Answer

Expert verified
The Doppler effect can be observed in both supersonic speeds and ultrasonic waves. So, the correct answer is (C) Both of these.

Step by step solution

01

Define the Doppler Effect

The Doppler effect is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source. It is commonly observed in sound and light waves. When the source and observer are moving closer together, the observed frequency increases, while it decreases when they are moving apart.
02

Discuss Supersonic Speed

Supersonic speed refers to any speed greater than the speed of sound in the medium through which the wave is traveling. When an object travels at supersonic speeds, it generates shock waves or compression waves. These shock waves produce a sonic boom effect, which can be observed as a large sound disturbance. The Doppler effect can be observed in this scenario as the observer will perceive a change in frequency as the object and shock waves approach and move away from them.
03

Discuss Ultrasonic Waves

Ultrasonic waves are sound waves that have frequencies higher than the upper limit of human hearing, typically above 20,000 Hz. Although they are not audible to the human ear, they still involve the movement of sound waves through a medium. Ultrasonic waves can also exhibit the Doppler effect, as the change in frequency or wavelength can be observed when an observer is in motion relative to the wave source, even if they cannot directly hear the sound.
04

Choose the Correct Option

Based on our understanding of the Doppler effect and the two scenarios presented, we can conclude that the Doppler effect can indeed be observed in both supersonic speeds and ultrasonic waves. Therefore, the correct option is: (C) Both of these

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.

Over 30 million students worldwide already upgrade their learning with 91影视!

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

If \(Y_{1}=5 \sin (\omega t)\) and \(Y_{2}=5[\sqrt{3} \sin \omega t+\cos \omega t]\) are two SHMs, the ratio of their amplitude is (A) \(1: \sqrt{3}\) (B) \(1: 3\) (C) \(1: 2\). (D) \(1: \cos \left(\frac{\pi}{6}\right)\)

For a certain stretched string, three consecutive resonance frequencies are observed as \(105,175,245 \mathrm{~Hz}\), respectively. Then select the correct alternatives (A) The string is fixed at both ends. (B) The string is fixed at one end only. (C) The fundamental frequency is \(35 \mathrm{~Hz}\). (D) The fundamental frequency is \(52.5 \mathrm{~Hz}\).

A pipe of length \(85 \mathrm{~cm}\) is closed from one end. Find the number of possible natural oscillations of air column in the pipe whose frequencies lie below 1250 \(\mathrm{Hz}\). The velocity of sound in air is \(340 \mathrm{~m} / \mathrm{s}\) (A) 12 (B) 8 (C) 6 (D) 4

A signal of \(5 \mathrm{kHz}\) frequency is amplitude modulated on a carrier wave of frequency \(2 \mathrm{MHz}\). The frequencies of the resulting signal is/are (A) \(2005 \mathrm{kHz}\), and \(1995 \mathrm{kHz}\) (B) \(2005 \mathrm{kHz}, 2000 \mathrm{kHz}\) and \(1995 \mathrm{kHz}\) (C) \(2000 \mathrm{kHz}\) and \(1995 \mathrm{kHz}\) (D) \(2 \mathrm{MHz}\) only

A closed organ pipe of length \(L\) is vibrating in its first overtone. There is a point \(Q\) inside the pipe at a distance \(7 L / 9\) from the open end. The ratio of pressure amplitude at \(Q\) to the maximum pressure amplitude in the pipe is (A) \(1: 2\) (B) \(2: 1\) (C) \(1: 1\) (D) \(2: 3\)
See all solutions

Recommended explanations on Physics Textbooks

Force

Read Explanation

Electromagnetism

Read Explanation

Waves Physics

Read Explanation

Magnetism

Read Explanation

Scientific Method Physics

Read Explanation

Quantum Physics

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.