Telephoto lens.

[kelly1]

Another word problem. Any help is greatly appreciated!!


Use the formula 1/f=1/0+1/i to find the image distance i for an object that is 2,000,000 mm from a 250-mm telephoto lens. Thanks!!

 

[stapel]

Define the variables. Tell which number goes with which. Then show how far you have gotten in the "plug-n-chug" process.

Thank you.

Eliz.