In this laboratory activity, students learn about lenses and telescope construction. Students will describe the nature of convex lenses, measure the focal length of several lenses, describe real and virtual images, and construct a simple refracting telescope in this activity. %0 Electronic Source %A Slater, Tim %D 1997 %T Lenses and Telescopes %V 2020 %N 22 February 2020 %9 text/html %U http://fileserver.net-texts.com/asset.aspx?dl=no&id=9706Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.