SOLUTION: 68. Telephoto lens. Use the formula from Exercise 67 to find
the image distance i for an object that is 2,000,000 mm from
a 250-mm telephoto lens.
it is the formula 1/f=1/o+1/
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Question 203468This question is from textbook
: 68. Telephoto lens. Use the formula from Exercise 67 to find
the image distance i for an object that is 2,000,000 mm from
a 250-mm telephoto lens.
it is the formula 1/f=1/o+1/i
thanks so much
This question is from textbook
Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!
where f = focal length, o = object distance, i = image distance
Given, o = 2000000 mm, f = 250 mm.
Substituting these in the given equation
mm (approximately)
P.S.: The minus sign indicates that the object and image are on the opposite sides of the lens.
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