17.1. The Big Idea http://www.ck12.org
(c) Does your image appear bigger or smaller than the object? Calculate the expected magnification and
compare it to your sketch.
- Consider a convex mirror with a focal length equal to two units. (a)Carefullytrace three rays coming off the
top of the object and form the image.
(b) Measuredoanddi. (c) Use the mirror/lens equation to calculatedi. (d) Find the percent difference between
your measureddiand your calculateddi. (e) Measure the magnificationMand compare it to the calculated
magnification.
- Consider a converging lens with a focal length equal to three units. (a)Carefullytrace three rays coming off
the top of the object and form the image.
(b) Measuredoanddi. (c) Use the mirror/lens equation to calculatedi. (d) Find the percent difference between
your measureddiand your calculateddi. (e) Measure the magnificationMand compare it to the calculated
magnification.
- Consider a diverging lens with a focal length equal to four units.
a.Carefullytrace three rays coming off the top of the object and show where they converge to form the
image.
b.