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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

What Are Ultrasonics ? Can You Hear the Ultrasonic Sound ? - Physics

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प्रश्न

What are ultrasonics? Can you hear the ultrasonic sound?

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उत्तर

Sounds of frequency higher than 20,000 Hz are called the ultrasonics. We cannot hear the ultrasonic sounds.

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पाठ 6: Sound - Short/Long Answer Questions [पृष्ठ १०६]

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सेलिना Concise Physics [English] Class 7 ICSE
पाठ 6 Sound
Short/Long Answer Questions | Q 15 | पृष्ठ १०६
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