Question

Sound propagation requires a material medium explain.​

Answer 1

sᴏᴜɴᴅ ɴᴇᴇᴅs ᴀ ᴍᴀᴛᴇʀɪᴀʟ ᴍᴇᴅɪᴜᴍ ғᴏʀ ᴛʜᴇɪʀ ᴘʀᴏᴘᴀɢᴀᴛɪᴏɴ ʟɪᴋᴇ sᴏʟɪᴅ, ʟɪϙᴜɪᴅ ᴏʀ ɢᴀs ᴛᴏ ᴛʀᴀᴠᴇʟ ʙᴇᴄᴀᴜsᴇ ᴛʜᴇ ᴍᴏʟᴇᴄᴜʟᴇs ᴏғ sᴏʟɪᴅ, ʟɪϙᴜɪᴅ ᴀɴᴅ ɢᴀsᴇs ᴄᴀʀʀʏ sᴏᴜɴᴅ ᴡᴀᴠᴇs ғʀᴏᴍ ᴏɴᴇ ᴘᴏɪɴᴛ ᴛᴏ ᴀɴᴏᴛʜᴇʀ. sᴏᴜɴᴅ ᴄᴀɴɴᴏᴛ ᴘʀᴏɢʀᴇss ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ᴠᴀᴄᴜᴜᴍ ʙᴇᴄᴀᴜsᴇ ᴛʜᴇ ᴠᴀᴄᴜᴜᴍ ʜᴀs ɴᴏ ᴍᴏʟᴇᴄᴜʟᴇs ᴡʜɪᴄʜ ᴄᴀɴ ᴠɪʙʀᴀᴛᴇ ᴀɴᴅ ᴄᴀʀʀʏ ᴛʜᴇ sᴏᴜɴᴅ ᴡᴀᴠᴇs

Answer 2

Sound needs a material medium for their propagation like solid, liquid or gas to travel because the molecules of solid, liquid and gases carry sound waves from one point to another. Sound cannot progress through the vacuum because the vacuum has no molecules which can vibrate and carry the sound waves.