4 Answered Questions for the topic Lens


Need Help With This Physics 3 Questions?

a. An object is placed 4.0 m away from a thin converging lens of focal length +1.0 m. The image formed by the lens is... more


Camera for Couple and Event Photography?

I have Nikon D5300 camera with two lenses ( 18-55mm f/3.5-5.6G & 55-200mm f/4-5.6G), please let me know if my camera and lenses work for Couple and Event Photography? if not , what Camera and... more


finding focal length.

Please be aware that you need to use centimeters instead of meters for the answer in this question. This is different than the practice test. If you build a telescope with a focal length of 6.33... more


Focal length question

A converging glass lens (index of refraction 1.63) has a focal length of 40 cm in air. Find its focal length when it is immersed in a liquid, which has an index of refraction 1.32.   The way I... more

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.


Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.