Question

Hey guys
Please explain the photoelectric effect
It's very urgent pls guys fast

Answer 1

ʟɪɢʜᴛ ᴡɪᴛʜ ᴇɴᴇʀɢʏ ᴀʙᴏᴠᴇ ᴀ ᴄᴇʀᴛᴀɪɴ ᴘᴏɪɴᴛ ᴄᴀɴ ʙᴇ ᴜsᴇᴅ ᴛᴏ ᴋɴᴏᴄᴋ ᴇʟᴇᴄᴛʀᴏɴs ʟᴏᴏsᴇ, ғʀᴇᴇɪɴɢ ᴛʜᴇᴍ ғʀᴏᴍ ᴀ sᴏʟɪᴅ ᴍᴇᴛᴀʟ sᴜʀғᴀᴄᴇ, ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ sᴄɪᴇɴᴛɪғɪᴄ ᴀᴍᴇʀɪᴄᴀɴ. ᴇᴀᴄʜ ᴘᴀʀᴛɪᴄʟᴇ ᴏғ ʟɪɢʜᴛ, ᴄᴀʟʟᴇᴅ ᴀ ᴘʜᴏᴛᴏɴ, ᴄᴏʟʟɪᴅᴇs ᴡɪᴛʜ ᴀɴ ᴇʟᴇᴄᴛʀᴏɴ ᴀɴᴅ ᴜsᴇs sᴏᴍᴇ ᴏғ ɪᴛs ᴇɴᴇʀɢʏ ᴛᴏ ᴅɪsʟᴏᴅɢᴇ ᴛʜᴇ ᴇʟᴇᴄᴛʀᴏɴ. ᴛʜᴇ ʀᴇsᴛ ᴏғ ᴛʜᴇ ᴘʜᴏᴛᴏɴ's ᴇɴᴇʀɢʏ ᴛʀᴀɴsғᴇʀs ᴛᴏ ᴛʜᴇ ғʀᴇᴇ ɴᴇɢᴀᴛɪᴠᴇ ᴄʜᴀʀɢᴇ, ᴄᴀʟʟᴇᴅ ᴀ ᴘʜᴏᴛᴏᴇʟᴇᴄᴛʀᴏɴ.

ᴜɴᴅᴇʀsᴛᴀɴᴅɪɴɢ ʜᴏᴡ ᴛʜɪs ᴡᴏʀᴋs ʀᴇᴠᴏʟᴜᴛɪᴏɴɪᴢᴇᴅ ᴍᴏᴅᴇʀɴ ᴘʜʏsɪᴄs. ᴀᴘᴘʟɪᴄᴀᴛɪᴏɴs ᴏғ ᴛʜᴇ ᴘʜᴏᴛᴏᴇʟᴇᴄᴛʀɪᴄ ᴇғғᴇᴄᴛ ʙʀᴏᴜɢʜᴛ ᴜs "ᴇʟᴇᴄᴛʀɪᴄ ᴇʏᴇ" ᴅᴏᴏʀ ᴏᴘᴇɴᴇʀs, ʟɪɢʜᴛ ᴍᴇᴛᴇʀs ᴜsᴇᴅ ɪɴ ᴘʜᴏᴛᴏɢʀᴀᴘʜʏ, sᴏʟᴀʀ ᴘᴀɴᴇʟs ᴀɴᴅ ᴘʜᴏᴛᴏsᴛᴀᴛɪᴄ ᴄᴏᴘʏɪɴɢ.

Answer 2

The photoelectric effect is the emission of electrons or other free carriers when light shines on a material. Electrons emitted in this manner can be called photo electrons. This phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry.