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Chapters
4.1: The Vet
4.2: Revolutionary Steps in Surgery
4.3: The Bees
4.4: Ramanujan
4.5: A Battle to Baffle
मराठी
११: जीवन गाणे (कविता)
१२: शब्दकोश (स्वाध्याय)
१३: संतवाणी
Mathematics
14: Compound Interest
15: Area
16: Surface Area and Volume
17: Circle: Chord and Arc
General Science
▶ 15: Sound
16: Reflection of Light
17: Man Made Materials
18: Ecosystems
19: Life Cycle of Stars
History
11: Struggle for Equality
12: India Gains Independence
13: Fulfillment of Struggle for Independence
14: Formation of State of Maharashtra
Civics
5: The State Government
6: Bureaucracy
Geography
9: Map Scale
Chapter 10: Field Visit
![Balbharati solutions for एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ chapter 15 - Sound - Shaalaa.com](/images/integrated-8-standard-part-4-english-medium-maharashtra-state-board_6:6da1c8fd091740079f81765bbc31c1b8.jpg "Balbharati solutions for एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ chapter 15 - Sound")
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Solutions for Chapter 15: Sound
Below listed, you can find solutions for Chapter 15 of Maharashtra State Board Balbharati for एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ.
Balbharati solutions for एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ 15 Sound Exercises [Page 81]
Fill in the blank with approriate word:
The region in a sound wave, with higher pressure and density, is called ______ and that with low pressure and density is called ______.
Medium is ______ for generation of sound.
The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is __________.
Different sound notes have different ______.
In loudspeaker ________ energy is converted into ________ energy.
Give scientific reasons:
It is essential to change the tension on the vocal cords, as we produce different sound notes from our larynx.
Give scientific reasons:
Astronauts on the moon can not hear each other directly.
Give scientific reasons:
As the sound wave propagates from one place to the other in air, the air itself is not required to move from one place to the other.
How are different sound notes generated in musical instruments like guitar, which uses strings for sound generation, and flute, which uses blown air for sound generation?
How is sound produced in a human larynx and a loudspeaker?
Explain the experiment, with a neat diagram, to prove the following:
'Sound needs material medium for propagation.'
Match the following:
| Human larynx | Vibrations of metal arms |
| Loudspeaker | Vibrations in air column |
| Jal-Tarang | Vibrations in vocal cords |
| Tuning fork | Vibrations in strings |
| Sitar | Vibrations of screen |
project:
Take two plastic glasses and tie a thread between them to make a toy phone. Does the voice of your friend reach you through the thread? Take metal wire instead of the thread and also change the length of thread/wire and repeat the activity. Discuss with your friends and teacher about. Your conclusions.
Take a plastic or tin can or a plastic glass. Remove its bottom. Stretch a piece of rubber balloon across one end and fix it with a rubber band. Put a few grains of say ragi or bajra on the stretched rubber. Now ask your friend to shout 'Hoorrey..... Hoorrey.....' from the open end of the glass. Observe the dancing of the grains up and down. Discuss the reason behind this.
Solutions for 15: Sound
Balbharati solutions for एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ chapter 15 - Sound
Shaalaa.com has the Maharashtra State Board Mathematics एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Balbharati solutions for Mathematics एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ Maharashtra State Board 15 (Sound) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ chapter 15 Sound are Production of Sound, Propagation of Sound, Characteristics of a Sound Wave, Sound and Music, Sound Produced by Humans, Sound Generation by Loudspeaker, Sound, Sound Need a Medium to Travel.
Using Balbharati एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ solutions Sound exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Balbharati Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ students prefer Balbharati Textbook Solutions to score more in exams.
Get the free view of Chapter 15, Sound एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ additional questions for Mathematics एकात्मिक ८ इयत्ता भाग ४ [इंग्रजी माध्यम] महाराष्ट्र राज्य शिक्षण मंडळ Maharashtra State Board, and you can use Shaalaa.com to keep it handy for your exam preparation.
