NCERT Solutions for Class 9 Science Chapter 12- Sound

NCERT Solutions For Class 9 Science Chapter 12 PDF Free Download

NCERT Solutions for Class 9 Chapter 12- Sound is the best way to enhance ones conceptual knowledge on the topic. It contains answers to the questions provided in the textbook in such a way that the students grasp easily. NCERT Solutions a reference guide to clarify topic related doubts.

It also contains several long, short answers along with MCQs and important questions answered by the subject experts. Every possible attempt is made to create good quality content with all the useful information. Chapter Sound is very important from the examination perspective. Therefore, all that is important has been compiled and presented here in the form of NCERT Solutions Class 9 Science.

The students are advised to go through the NCERT Solutions Class 9 for self-evaluation after having studied each chapter. They will thereby get to know their shortcomings and will try to overcome them before the examinations.

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Ncert Solutions For Class 9 Science Chapter 12 part 1
Ncert Solutions For Class 9 Science Chapter 12 part 2
Ncert Solutions For Class 9 Science Chapter 12 part 3
Ncert Solutions For Class 9 Science Chapter 12 part 4
Ncert Solutions For Class 9 Science Chapter 12 part 5
Ncert Solutions For Class 9 Science Chapter 12 part 6
Ncert Solutions For Class 9 Science Chapter 12 part 7
Ncert Solutions For Class 9 Science Chapter 12 part 8
Ncert Solutions For Class 9 Science Chapter 12 part 9
Ncert Solutions For Class 9 Science Chapter 12 part 10
Ncert Solutions For Class 9 Science Chapter 12 part 11
Ncert Solutions For Class 9 Science Chapter 12 part 12

NCERT Solutions for Class 9 Science Chapter 12- Sound

This chapter holds a weightage of 27 marks in the examination. The questions can be asked from any topic, therefore, the students should be well-prepared. Detailed questions are frequently asked from the structure of the ear, and reflection of sound. Practice the numerical really well.

The topics included in the chapter are:

12.1 Production of Sound

12.2 Propagation of Sound

12.3 Reflection of Sound

12.4 Range of Hearing

12.5 Applications of Ultrasound

12.6 Structure of Human Ear

List of Exercises

Exercise Solutions 22 Questions (7 long, 5 numerical, 10 short)

Production of Sound- 2 Questions

Propagation of Sound- 3 Questions

Reflection of Sound- 4 Questions

Range of Hearing- 1 Questions

Applications of ultrasound- 4 Questions

Structure of Human Ear- 1 Question

NCERT Solutions for Class 9 Science Chapter 12- Sound

Sound is a mechanical or longitudinal wave. It cannot travel through a vacuum. Variation in pressure produces sound. The region of increased pressure on a sound wave is called compression while the region of decreased pressure on a sound wave is called a rarefaction.

The various sources of sound are:

  • Rapid expansions and compressions
  • Vibrating solids
  • Vortex shedding

Key Features of NCERT Solutions for Class 9 Science Chapter 12- Sound

  • NCERT Solutions provide conceptual knowledge on the topic.
  • The questions are answered by subject experts, therefore, the concepts are accurate.
  • It will help the students score well in the examinations.
  • The questions provided might get repeated in the final examination. Therefore, it is advised to go through the questions and answers thoroughly.