Asked by anonymous

A lens has a focal length of +30 cm and a magnification of 6. How far apart are the object and the image?

Answers

Answered by Damon
1/s +1/s' = 1/f =1/30
m = s'/s = 6
so
1 / s + 1 / 6s = 1/30
7 / 6s = 1/30
6 s = 210
s = 35 cm source to lens
s' = 6 s = 210 cm image to lens
so 35 +210
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