A 3.0 cm object is 12.0 cm from a convex mirror that has a focal length of 20.0 cm. What is the distance of the image from the mirror?
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given: u = - 12.0 cm object distance
v = ?
f = 20.0cm
1/v +1/u = 1/ f
1/v -1/ 12 = 1/20
1/v = 1/12 + 1/20
1/v = 20/ 240 + 12/ 240
1/v = 32/ 240
v = 7.5 cm ( image distance )
v = ?
f = 20.0cm
1/v +1/u = 1/ f
1/v -1/ 12 = 1/20
1/v = 1/12 + 1/20
1/v = 20/ 240 + 12/ 240
1/v = 32/ 240
v = 7.5 cm ( image distance )
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