Locate the position of the image.

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SUMMARY

The discussion focuses on locating the position of an image formed by a diverging lens with a focal length of 15.7 cm. The object height is 1.91 cm, and the object distance is 380 cm. The correct formula to use is the lens formula (1/f) = (1/p) + (1/i), where 'p' is the object distance and 'i' is the image distance. The user initially misapplied the object height instead of the object distance, leading to incorrect calculations.

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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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