4 Answered Questions for the topic Lens

10/11/20

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
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04/27/19

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
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03/20/18

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
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09/14/17

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
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