infrared Flashcards
(4 cards)
1
Q
3 exsaples of infrear
A
tv remost, grill and toasted
2
Q
how can ir be used in heat vision
A
thing give out ir radiation and a heat vision camera terns this in to a electric signal so the hotter something is the brighter it is.
3
Q
how dose ir control your tv
A
it acts as a digtil on/off signal witch is decoded at the tv.
4
Q
why do you haff to point the remote to chase chanel
A
ir dose not difratked so it onle travels in a strat line
