What is the focal length of a lens that takes an object 10 cm away from...

Question

Question

What is the focal length of a lens that takes an object 10 cm away from it and projects a clear image 20 cm?

Answer 1

Answer #1

object distance u=-locm. 56-6구M Image Distance v=zoom f? 이 리를 설 FIL 기 N 하하 호 V floom 20cm 후는 Tt =| 20 to 10 (5 ( +2 - 20 - 3.

Answer 2

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