Class 8 Exam > Class 8 Videos > कक्षा - 8 हिन्दी (Class 8 Hindi) by VP Classes > Summary - ध्वनि
Summary - ध्वनि Video Lecture | कक्षा - 8 हिन्दी (Class 8 Hindi) by VP Classes
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17 videos|193 docs|129 tests
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FAQs on Summary - ध्वनि Video Lecture - कक्षा - 8 हिन्दी (Class 8 Hindi) by VP Classes
| 1. What is the chapter summary of "ध्वनि Class 8"? |  |
Ans. "ध्वनि Class 8" is a chapter about sound and its properties. It explains the concept of sound waves, their speed, and the factors affecting it. The chapter also covers the human ear and how it works, as well as the different types of sounds and their sources.
| 2. What are the main topics covered in the "ध्वनि Class 8" chapter? | |
Ans. The main topics covered in the "ध्वनि Class 8" chapter are the properties of sound, sound waves, their speed, the factors affecting it, the human ear and how it works, and the types of sounds and their sources.
| 3. What is the importance of studying sound properties? | |
Ans. Studying sound properties is important because it helps us understand how sound works and how we can control it. It is also important for various applications such as in music, telecommunications, and medical imaging.
| 4. What is the difference between a mechanical and electromagnetic wave? | |
Ans. A mechanical wave requires a medium to travel through, while an electromagnetic wave can travel through a vacuum. Sound waves are an example of mechanical waves, while light waves are an example of electromagnetic waves.
| 5. What is the frequency of a sound wave and how is it measured? | |
Ans. The frequency of a sound wave is the number of cycles it completes in one second. It is measured in Hertz (Hz). The frequency of a sound can be measured using an instrument called a frequency meter or by using an oscilloscope.
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Dec 31, 2024 Last updated |
Video Description: Summary - ध्वनि for Class 8 2024 is part of कक्षा - 8 हिन्दी (Class 8 Hindi) by VP Classes preparation.
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Introduction of Summary - ध्वनि in English is available as part of our कक्षा - 8 हिन्दी (Class 8 Hindi) by VP Classes for Class 8 & Summary - ध्वनि in
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