agra,ahmedabad,ajmer,akola,aligarh,ambala,amravati,amritsar,aurangabad,ayodhya,bangalore,bareilly,bathinda,bhagalpur,bhilai,bhiwani,bhopal,bhubaneswar,bikaner,bilaspur,bokaro,chandigarh,chennai,coimbatore,cuttack,dehradun,delhi ncr,dhanbad,dibrugarh,durgapur,faridabad,ferozpur,gandhinagar,gaya,ghaziabad,goa,gorakhpur,greater noida,gurugram,guwahati,gwalior,haldwani,haridwar,hisar,hyderabad,indore,jabalpur,jaipur,jalandhar,jammu,jamshedpur,jhansi,jodhpur,jorhat,kaithal,kanpur,karimnagar,karnal,kashipur,khammam,kharagpur,kochi,kolhapur,kolkata,kota,kottayam,kozhikode,kurnool,kurukshetra,latur,lucknow,ludhiana,madurai,mangaluru,mathura,meerut,moradabad,mumbai,muzaffarpur,mysore,nagpur,nanded,narnaul,nashik,nellore,noida,palwal,panchkula,panipat,pathankot,patiala,patna,prayagraj,puducherry,pune,raipur,rajahmundry,ranchi,rewa,rewari,rohtak,rudrapur,saharanpur,salem,secunderabad,silchar,siliguri,sirsa,solapur,sri-ganganagar,srinagar,surat,thrissur,tinsukia,tiruchirapalli,tirupati,trivandrum,udaipur,udhampur,ujjain,vadodara,vapi,varanasi,vellore,vijayawada,visakhapatnam,warangal,yamuna-nagar

Lakhmir Singh Solutions Class 8 Science Chapter 13: Sound

This chapter highlights the unique functioning of our body and relates it with the form of energy. The science chapter 13 sound tells the students how the sounds are produced and reaches us by travelling through a medium. The students get to understand how our body responds to these sounds in several ways. Students grasp a bunch of new information about the variety of sources present in the world for sound production. In addition, students examine an astonishingly broad view of waves, vibration, and the path of propagation of these waves.

The lesson further discusses the two types of waves- longitudinal or transverse. Depending on the direction of the particle motion, one can easily differentiate between these two waves. Moreover, it tells about the necessary factors for a sound wave to propagate and external forces to carry these sound waves. Finally, the chapter elucidates vital information on how humans generate sounds through the larynx and various pitches produced by it. Students get to know about the frequency and pitch range differences in men and women.

The lesson generally serves to focus on giving a complete knowledge of the transverse section of the human ear divided into three parts-
   1. Outer ear
   2. Middle ear
   3. Inner ear
It further elaborates that the interconnected functioning between these parts leads to the travelling of vibrations to the brain via auditory nerves. This text further discusses the properties of wave-like amplification, oscillation, time, and their relation to each other. Thus, it helps to focus on the basic concepts that result in the hearing sense of humans.

The chapter further teaches the characteristics of sound waves and the ranges of inaudible and audible sounds. These lead to a deeper understanding of the practical applications of these waves like sonar, dog whistle and echolocation. Students get their confusions clarified between loudness and pitch and the factors on which these depend. The chapter also makes the students aware of the preventive measures adopted to prevent noise pollution.




Download PDF For FREE


Key features of Aakash Lakhmir Singh Solution Class 8th Science Chapter 13 - Sound:

  • The Lakhmir Singh science solution of chapter 13 presents the study material according to the latest syllabus with examples that help the concepts get retained in students' minds for a long time.
  • Aakash institute develops unique content and solutions by illustrating the mathematical approach and providing some examples of practical situations so that the student will be able to understand the concept.
  • Aakash institute aims to provide these solutions to help students clear the examinations by providing the best possible answers.

NEET Related Links

NEET Exam 2024

NEET 2024 Exam Dates

NEET 2024 Exam pattern

NEET 2024 Syllabus

NEET 2024 Eligibility Criteria

NEET 2024 Application

NEET UG Counselling


NEET UG Result

NEET 2024 Cut Off

Neet 2023 Toppers List Names & Rank

Neet Result 2023 Toppers list rank cut off

Neet Answer key Live Download PDF

Neet 2023 State Toppers List

JEE MAIN Related Links

JEE Main 2024

JEE Main Rank Predictor 2024

JEE Main College Predictor 2024

JEE Main 2024 Exam Dates

JEE Main 2024 Exam pattern

JEE Main 2024 Application

JEE Main 2024 Eligibility Criteria

JEE Main 2024 Syllabus

JEE Main 2024 Physics Syllabus

JEE Main 2024 Maths Syllabus

JEE Main 2024 Chemistry Syllabus

JEE Main 2024 Admit Card

JEE Main 2024 Counselling

JEE Main marks vs rank vs percentile

JEE Advanced Result 2023 live topper list

JEE Exam Preparation - How to calculate your rank jee

JEE Maths Syllabus - Important topics and weightage

JEE Advanced Related Links

JEE Advanced 2024 Exam Dates

JEE Advanced 2024 Application

JEE Advanced 2024 Eligibility Criteria

JEE Advanced 2024 Syllabus

JEE Advanced 2024 Maths Syllabus

JEE Advanced 2024 Physics Syllabus

JEE Advanced 2024 Chemistry Syllabus

JEE Advanced Exam Result

JEE Advanced Exam Dates

JEE Advanced Registration Dates

CUET Related Links

CUET 2024 Eligibility Criteria

CUET 2024 Admit Card

CUET 2024 Exam Pattern

CUET 2024 FAQs

CUET 2024 Counselling

CUET 2024 Syllabus

CUET 2024 Result

CUET 2024 Answer Key

CUET 2024 Preparation


CUET 2024 Application Form

Talk to our expert
Resend OTP Timer =
By submitting up, I agree to receive all the Whatsapp communication on my registered number and Aakash terms and conditions and privacy policy