Question

Crust of sound waves emitted from loud speaker is which
wavelength __________?
​

Answer 1

For sound waves in air, the speed of sound is 343 m/s (at room temperature and atmospheric pressure). The wavelengths of sound frequencies audible to the human ear (20 Hz–20 kHz) are thus between approximately 17 m and 17 mm, respectively.

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#Hope it helps...

Answer 2

Qᴜᴇsᴛɪᴏɴ :-

• Cʀᴜsᴛ ᴏғ sᴏᴜɴᴅ ᴡᴀᴠᴇs ᴇᴍɪᴛᴛᴇᴅ ғʀᴏᴍ ʟᴏᴜᴅ sᴘᴇᴀᴋᴇʀ ɪs ᴡʜɪᴄʜ ᴡᴀᴠᴇʟᴇɴɢᴛʜ __________?

Aɴsᴡᴇʀ :-

• Fᴏʀ sᴏᴜɴᴅ ᴡᴀᴠᴇs ɪɴ ᴀɪʀ, ᴛʜᴇ sᴘᴇᴇᴅ ᴏғ sᴏᴜɴᴅ ɪs 343 ᴍ/s (ᴀᴛ ʀᴏᴏᴍ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴀɴᴅ ᴀᴛᴍᴏsᴘʜᴇʀɪᴄ ᴘʀᴇssᴜʀᴇ). Tʜᴇ ᴡᴀᴠᴇʟᴇɴɢᴛʜs ᴏғ sᴏᴜɴᴅ ғʀᴇϙᴜᴇɴᴄɪᴇs ᴀᴜᴅɪʙʟᴇ ᴛᴏ ᴛʜᴇ ʜᴜᴍᴀɴ ᴇᴀʀ (20 Hᴢ–20 ᴋHᴢ) ᴀʀᴇ ᴛʜᴜs ʙᴇᴛᴡᴇᴇɴ ᴀᴘᴘʀᴏxɪᴍᴀᴛᴇʟʏ 17 ᴍ ᴀɴᴅ 17 ᴍᴍ, ʀᴇsᴘᴇᴄᴛɪᴠᴇʟʏ.