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                    href="https://tr.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:sound/x0c8b40bd4b242f0b:types-of-sound-transmission-of-sound-reflection-of-sound/e/types-of-sound-their-transmission-and-reflection" />
        
        <xhtml:link rel="alternate" hreflang="ur"
                    href="https://ur.khanacademy.org/science/grade-7-science-snc-aligned/x64f379bc07a3640a:waves-and-energy/x64f379bc07a3640a:characteristics-of-sound/e/types-of-sound-their-transmission-and-reflection" />
        
        <lastmod>2026-04-08T08:29:36.136522811Z</lastmod>
        
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            <Attribute name="title">ध्वनीचे प्रकार, त्यांचे प्रसारण आणि परावर्तन </Attribute>
            <Attribute name="description">चला, ध्वनीचे प्रकार, त्यांचे प्रसारण आणि परावर्तन यांवरील प्रश्न सोडवू.   </Attribute>
            <Attribute name="author">Vibhor Pandey</Attribute>
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