Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
23
Light: Geometric Optics
Change chapter

23-2: Reflection; Plane Mirrors
23-3: Spherical Mirrors
23-4: Index of Refraction
23-5: Refraction; Snell's Law
23-6: Total Internal Reflection
23-7 and 23-8: Thin Lenses
23-9: Lens Combinations
23-10: Lensmaker's Equation

Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 54
Q
  1. A 2.40-cm-high insect is 1.30 m from a 135-mm-focal-length lens. Where is the image, how high is it, and what type is it?
  2. What if f = -135 mm?
A
  1. 15.1 cm, real
  2. di=12.2d_i = -12.2, virtual hi=0.226h_i = 0.226, upright.
Giancoli 7th Edition, Chapter 23, Problem 54 solution video poster
Padlock

In order to watch this solution you need to have a subscription.

COMMENTS
By theovilous on Tue, 4/2/2019 - 1:13 AM

There is a typo in the answer. In the video, the height of the image is 0.226cm but the answer on top is written 0.266cm. By the way I have been enjoying your physics videos. they are very helpful!!!

By Mr. Dychko on Tue, 4/2/2019 - 7:32 PM

I have updated the quick answer. Thank you very much for spotting that, and thanks also for the great feedback. I'm thrilled the solutions are helping with your studies!

Find us on:

Facebook iconTrustpilot icon
Giancoli Answers, including solutions and videos, is copyright © 2009-2024 Shaun Dychko, Vancouver, BC, Canada. Giancoli Answers is not affiliated with the textbook publisher. Book covers, titles, and author names appear for reference purposes only and are the property of their respective owners. Giancoli Answers is your best source for the 7th and 6th edition Giancoli physics solutions.