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An object, along with the light source, is 5 cm to the left of an unknown...

An object, along with the light source, is 5 cm to the left of an unknown optical element as shown below. The optical element generates an image 15cm to the right of the optical element.

Part A - Lens - Object Distance

What is the object distance o if the optical element is a lens?

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Answer #1

answer:

PART A-

For lens o is positive if the object is on the side of comming rays then it is positive

Therefore o = +5.0 cm

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