http://www.ck12.org Chapter 16. Light
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.- Above is a diagram showing how to make a “ghost light bulb.” The real light bulb is below the box and it
forms an image of the exact same size right above it. The image looks very real until you try to touch it. What
is the focal length of the concave mirror?
Answers to Selected Problems- 85 cm
- C.+4 units e.M=− 1
- a. 6 units c. bigger;M= 3
- c. 1.5 units e.M= 2 / 3
- 32 cm