Question

ᴛʜᴇ ᴍᴀxɪᴍᴜᴍ ᴋɪɴᴇᴛɪᴄ ᴇɴᴇʀɢʏ ᴏғ ᴀ ᴘʜᴏᴛᴏᴇʟᴇᴄᴛʀᴏɴ ɪs 3 ᴇᴠ. ᴡʜᴀᴛ ɪs ɪᴛs sᴛᴏᴘᴘɪɴɢ ᴘᴏᴛᴇɴᴛɪᴀʟ? ​

Answer 1

QUESTION :

ᴛʜᴇ ᴍᴀxɪᴍᴜᴍ ᴋɪɴᴇᴛɪᴄ ᴇɴᴇʀɢʏ ᴏғ ᴀ ᴘʜᴏᴛᴏᴇʟᴇᴄᴛʀᴏɴ ɪs 3 ᴇᴠ. ᴡʜᴀᴛ ɪs ɪᴛs sᴛᴏᴘᴘɪɴɢ ᴘᴏᴛᴇɴᴛɪᴀʟ?

ANSWER :

Maximum K.E of particle = 3ev

since, _____________

| k.E max = evo |

=> 3×1.6×10^-19 = 1.6×10^-19 Vo

.°. Stopping potential, Vo = 3v

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