Locate the position of the image.

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AI Thread Summary
The discussion revolves around locating the image position formed by a diverging lens with a focal length of 15.7 cm, given an object height of 1.91 cm and an object distance of 380 cm. The equation used is 1/f = 1/p + 1/i, where the user attempts to solve for the image distance (i). Confusion arises as the user mistakenly uses the object height instead of the object distance in their calculations. Clarification is provided that the object distance (p) is indeed 380 cm, which is essential for accurately determining the image position. Proper use of the formula will yield the correct image location.
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Homework Statement



A diverging lens has a focal length of 15.7 cm.
An object 1.91 cm in height is placed 380 cm
in front of the lens.

Locate the position of the image. Answer
in units of cm.

Homework Equations



(1/f)= (1/p)+(1/i)

The Attempt at a Solution



1/[(1/-15.7)-(1/1.91)]= i , i = -1.70284
i solved this way but i keep on getting the wrong answer don't know why
 
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o = 380 cm
 
what ?
i didnt get it
 
Sorry, you use a p, so p = 380 cm
 
To clarify, you're using the object height when you should be using the object distance from the lens.
 
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