Lakhmir Singh Physics Class 9 Solutions Chapter 5 - Sound

Textbook Solutions

Lakhmir Singh Physics Class 9 Solutions Chapter 5 - Sound

Lakhmir Singh Class 9 Physics Solutions Chapter 5 - Sound - Free PDF Download

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Class 9 Lakhmir Singh Physics Solutions Chapter 5

The fifth chapter ‘Sound’ incorporates a wide record of sound waves, their creation, and their propagation. Sound energy is the type of energy on account of which we can hear. It goes as longitudinal waves where the particles of the medium vibrate in a uni-course where the waves are moving. Other examples of longitudinal waves are the water waves formed on the water surface in a lake or the waves that move alongside a spring when it is pushed toward one side.

The chapter further explains the connection between speed, recurrence, and frequency of a wave. For instance, the vibration of two vocal strings in our throat or the vibration of a drum membrane delivers a sound that propagates through the layers of air and arrives at our ear. Sound waves are mechanical waves since they require a material mode for their propagation. Sound waves can't go through the vacuum or free space. Hence the astronauts convey through remote sets using radio waves on the outer surface of the moon.

This chapter teaches different uses of ultrasound in various fields and the idea of Sonar. The attributes of sound include loudness, pitch, and quality. Development of the human ear and its working are the concluding concepts of the chapter.

Topics covered in the Chapter

What are the sound waves?
How sound is produced?
Does sound travel?
What sources does sound use to travel?
What is the wavelength and what causes it?
Laws of Reflection of sound
What is reverberation?
What is compression?
All about the intensity of sound
Types of sound waves

Vedantu’s Lakhmir Singh Class 9 Physics Solutions for Chapter 5 is a truly essential study material that students must make use of. From detailed explanations to excellent questions - it has everything a student requires to ace their performance in the subject.

FAQs on Lakhmir Singh Physics Class 9 Solutions Chapter 5 - Sound

1. How are Lakhmir Singh Class 9 Physics solutions useful for students?

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2. Why should I refer to Lakhmir Singh's book for Physics?

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4. What sets of questions are available in Lakhmir Singh textbooks to explain Class 9 Physics?

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5. What does chapter 5- Sound of Physics Class 9 explain?

Concepts covered in Chapter 5 of Physics Class 9 are all related to Sound. It starts by explaining the Characteristics of a Sound Wave, Echoes, Human Ear and Production of Sound. Later on, the chapter teaches the topics and importance of Propagation of Sound, Range of Hearing in Humans, Reflection of Sound, Reverberation. Some other concepts are SONAR, Sound, Sound Need a Medium to Travel, Sound (Numerical) and Speed of Sound (Velocity of Sound). In the end, the chapter is explaining what ultrasound is and its importance.