what is si unit of sound ?
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ᴛʜᴇ ꜱɪ ᴜɴɪᴛ ᴏꜰ ꜱᴏᴜɴᴅ ᴩʀᴇꜱꜱᴜʀᴇ ɪꜱ ᴩᴀꜱᴄᴀʟ (ᴩᴀ). ᴅᴇᴄɪʙᴇʟ (ᴅʙ) ɪꜱ ᴀ ʀᴇʟᴀᴛɪᴠᴇ ᴜɴɪᴛ ᴏꜰ ᴍᴇᴀꜱᴜʀᴇᴍᴇɴᴛ ᴡɪᴅᴇʟy ᴜꜱᴇᴅ ɪɴ ᴀᴄᴏᴜꜱᴛɪᴄꜱ.
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Pascal (pa)!!!!!!!!
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