Peoples Physics Book Version-2

(Marvins-Underground-K-12) #1

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.


  1. 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.


  1. 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.


  1. 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.
Free download pdf