Asked by Anonymous

To find the image length, of a 4-foot-tall object in a spherical mirror with a focal length of 2 feet, L=4(2/o-2)^2 can be used, where 2 is the distance, in feet, of the object from the mirror. What is the image length of the object when it is 1.5 feet away from the mirror?
Answered by Anonymous
Repeated question with correct information in the question:
To find the image length, of a 4-foot-tall object in a spherical mirror with a focal length of 2 feet, L=4(2/o-2)^2 can be used, where o is the distance, in feet, of the object from the mirror. What is the image length of the object when it is 1.5 feet away from the mirror?
Answered by Damon
L = 4 (2/1.5 -2)^2
=4 (2/3 -2)^2
= 4 (-2/3)^2 = 4* 4/9 = 16/9
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