Suppose the fractional efficiency of a metal surface with work function 1.40 ev is 1.0 × 10-18; that is, on average one electron is ejected for every 1018 photons that reach the surface. what would be the current of electrons ejected from such a surface if it were illuminated with 510 nm light from a 1.75 mw laser and all the ejected electrons took part in the charge flow?

sleep paralysis is a parasomnia, events associated with sleep.

sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.

small = small current large mag large current