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मुख्य कॉन्टेंट

यूनिट 5: ध्वनि (Sound)

इस यूनिट के बारे में

There are sounds all around us. But the clap of your hand sounds very different from that of a flute. Why? How sound is produced? How do we hear it? Why do we sometimes hear echoes? Are there sounds that we can't hear? In this chapter, we will explore these and many more such questions.