Problem 33.3: Image in concave mirror

Please wait for the animation to completely load.

The animation shows an object and its image (position is given in meters and angle is given in degrees). You can click-drag the top of the arrow-shaped object. Restart.

Which, if any, of the following statements are true for this mirror?

  1. The magnification changes sign when the tip of the arrow is dragged below the principal axis.
  2. Light rays leaving the tip of the arrow always pass through the image.
  3. Real images are always inverted, while virtual images are always upright.

Problem authored by Melissa Dancy.

Physlets were developed at Davidson College and converted from Java to JavaScript using the SwingJS system developed at St. Olaf College.

OSP Projects:
Open Source Physics - EJS Modeling
Physlet Physics
Physlet Quantum Physics
STP Book