Question

define tydall effect....​

Answer 1

Answer:

Tyndall effect, also called Tyndall phenomenon, scattering of a beam of light by a medium containing small suspended particles—e.g., smoke or dust in a room, which makes visible a light beam entering a window. ... The effect is named for the 19th-century British physicist John Tyndall, who first studied it extensively.

Answer 2

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ᴛʜᴇ ᴘʜᴇɴᴏᴍᴇɴᴏɴ ᴏғ sᴄᴀᴛᴛᴇʀɪɴɢ ᴏғ ʟɪɢʜᴛ ʙʏ ᴘᴀʀᴛɪᴄʟᴇs ɪɴ ᴀ ᴄᴏʟʟᴏɪᴅ ᴏʀ ɪɴ ᴀ ᴠᴇʀʏ ғɪɴᴇ sᴜsᴘᴇɴsɪᴏɴ ɪs ᴄᴀʟʟᴇᴅ ᴛʏɴᴅᴀʟʟ ᴇғғᴇᴄᴛ. ᴛʜᴇ ɪɴᴅɪᴠɪᴅᴜᴀʟ sᴜsᴘᴇɴsɪᴏɴ ᴘᴀʀᴛɪᴄʟᴇs sᴄᴀᴛᴛᴇʀ ᴀɴᴅ ʀᴇғʟᴇᴄᴛ ʟɪɢʜᴛ, ᴍᴀᴋɪɴɢ ᴛʜᴇ ʙᴇᴀᴍ ᴠɪsɪʙʟᴇ. ᴛʜᴇ ᴀᴍᴏᴜɴᴛ ᴏғ sᴄᴀᴛᴛᴇʀɪɴɢ ᴅᴇᴘᴇɴᴅs ᴏɴ ᴛʜᴇ ғʀᴇǫᴜᴇɴᴄʏ ᴏғ ᴛʜᴇ ʟɪɢʜᴛ ᴀɴᴅ ᴅᴇɴsɪᴛʏ ᴏғ ᴛʜᴇ ᴘᴀʀᴛɪᴄʟᴇs.