Do it
Put together an experiment from the parts of the experiment set for light education, in which the image of fingers illuminated by a flashlight is formed on the screen behind the lens. Answer the question.
The following drawing is already familiar to us - this is how we can explain how we see our fingers.
Now let's try to make it work in real life - you need a light source, a lens and a screen replace the eye ... and fingers, which hopefully you have with you.
Teeme tutvust valgusõpetuse katsekomplektiga.
Hea tava näeb ette kasutada katsete tegemiseks tööalust. Videos on näha, kuidas saab läätse ja ekraani (valge paber) paberiklambritega tööalusele püsti asetada.
What happens on the screen if you direct the light of the flashlight on the lens, not on your fingers?