For the lens used in projector, what happens to the image formed
when the converging lens is replaced by a thicker lens?
The image formed will be nearer to the lens because the focal
length will be nearer
And nearer also means the image will still be real and inverted,
but smaller than before.
Also, should the lower half of the converging lens be covered
with a layer of dust, what happens to the image formed?
The image formed will be dimmer. Reason: Less light rays go
through.
Suggest a way to produce a real and upright image on the
screen. Complete the path of the 2 light rays (I
can only get an inverted, but not upright image)
Add one more lens to invert the inverted image back to upright
position ;)
Good luck for your exams :)
