images

  1. N

    Light projecting images

    Hi, I'm currently working on a project the aim of which is to build a small night light that uses LEDs. On top of this is a plastic sheet with a design printed on it that is to allow the images to be displayed on the ceiling - but I cannot get it to work! I have tried amending the mode of...
  2. R

    Electrical images method

    This is the theory for a laboratory session. If we have two hollow cylinders, one with radius r1 and the other with radius r7, the center of the first one being placed at a distance d from the center of the second one, what are the surfaces having the same electric potential? The cylinder...
  3. B

    capturing diffraction images of light through pinholes

    Hi, I am conducting an experiment and i am displaying diffraction images of light through 2 pinholes on a DSLR camera. I get a good image with lasers but when I capture images of chromatic light i only get the top half (semi circle) image. can someone explain to me why this occurs? I think...
  4. I

    lenses and images

    I've been trying to sort this problem out, but I've always had trouble with lenses... I know it's a relatively basic question, but I'm getting a weird answer. I'd really appreciate any help for this question. Thanks in advance! a)A lens is used to produce a real image of an object such that the...