NCERT Class 9 Arts Important Chapter 7 The Science of Music Solutions English Medium As Per New Syllabus. to each chapter is provided in the list so that you can easily browse through different chapters NCERT Class 9 Arts Important Chapter 7 The Science of Music Notes and select need one. NCERT Class 9 Arts Important Chapter 7 The Science of Music Question Answers Download PDF. NCERT Class 9 Arts Additional Question Answer.
NCERT Class 9 Arts Important Chapter 7 The Science of Music
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The Science of Music
Chapter: 7
| IMPORTANT QUESTION ANSWER |
Short Questions Answer
1. What are the four main categories of musical instruments mentioned in the chapter?
Ans: The four categories are string (tata-vādya), wind (suṣhira-vādya), percussion (avanaddha-vādya), and solid (ghana-vādya).
2. Which renowned Indian physicist and Nobel laureate studied the sounds made by the mṛidaṅgam and the tabla?
Ans: C.V. Raman.
3. What is the black patch at the centre of a mṛidaṅgam called?
Ans: It is called the karaṇai or syāhī.
4. What materials are used to make the karaṇai (syāhī) of a mṛidaṅgam?
Ans: It is made of iron or manganese powder, starch, and water.
5. How can you change the pitch of a stringed instrument?
Ans: The pitch can be increased by tightening the string or decreased by loosening it.
6. What is the function of the hollow box or body in musical instruments?
Ans: The hollow body impacts the loudness and enhances the sound of the instrument.
7. Which ancient Indian texts practically demonstrate fundamental concepts of sound?
Ans: The Nāṭyaśhāstra and Saṅgīta-ratnākara.
8. According to ancient Indian texts, what is the term used for ‘discernible intervals of sound’?
Ans: Śhruti.
9. What is the ancient Indian term for musical notes?
Ans: Svaras.
10. What are the three main subsystems of the human vocal system?
Ans: The air pressure system, vibratory system, and resonating system.
11. Which body parts make up the air pressure system in the human voice?
Ans: The diaphragm, lungs, and surrounding muscles.
12. Where are the vocal folds (vocal cords) located in the human body?
Ans: They are located in the voice box or larynx, which is part of the vibratory system.
13. Which body parts act as the resonating system for the human voice?
Ans: The throat, mouth, and nasal cavities.
14. Why is drinking sufficient water important for singers?
Ans: Water keeps the vocal cords hydrated and enables them to vibrate efficiently.
15. Who composed the kriti “Śhobhillu Saptasvara”, which describes the human vocal system?
Ans: The legendary Carnatic music composer, Saint Thyagaraja.
16. According to Saint Thyagaraja, where do the seven musical notes glow in the human body?
Ans: They glow in the abdomen, heart, neck, tongue, and nose.
17. What is the benefit of the humming (Bhrāmarī prāṇāyāma) exercise?
Ans: It gently warms up the vocal cords and improves resonance.
18. What mathematical concept helps us understand how different rhythmic cycles come together?
Ans: The Lowest Common Multiple (LCM).
19. In the rhythmic language of counts, what is the phrase for 3 akṣharas?
Ans: The phrase is “ta kita”.
20. How many beats are there in Teen Tāla and Ektāla?
Ans: Teen Tāla has 16 beats, and Ektāla has 12 beats.
Long Answer Type Questions
1. Name the three subsystems of the human vocal system, and describe the function of each.
Ans: The human voice acts as a built-in musical instrument that works using three main subsystems:
Air Pressure System: It involves the diaphragm, lungs, and surrounding muscles. Its main function is to control the breath and the airflow required to make a sound.Vibratory System: It includes the voice box (larynx) and vocal folds (or vocal cords). When air passes through, these cords vibrate to create the core sound.Resonating System: It consists of the throat, mouth, and nasal cavities. Its function is to amplify the sound and shape it into specific words and tones.
2. Describe some ways to ensure our voices are in good condition.
Ans: To care for our voices and keep them healthy, we should follow these three essential steps:
Drink sufficient water: This keeps the vocal cords hydrated and enables them to vibrate efficiently without getting tired.
Eat a healthy diet: We should eat a diet rich in fruits and vegetables because it boosts immunity against colds and coughs, which can negatively affect voice quality. We should also avoid oily or very acidic foods as they can irritate the vocal cords.
Speak at a moderate volume: Sometimes we tend to shout or raise our voices out of overexcitement, but we must consciously speak at a moderate volume to protect our voice from unnecessary fatigue or damage.
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