What is the focal length of a lens if when an object is located 20.0cm to the left of lens, the image is located 10.0cm to the left of the lens?
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a) 0.05cm |
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b) 0.15cm |
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c) -6.67cm |
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d) +20cm |
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e) +6.67cm |
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f) -20cm |
What is the focal length of a lens if when an object is located 20.0cm to the left of lens, the image is located 10.0cm to the left of the lens?
|
a) 0.05cm |
||
|
b) 0.15cm |
||
|
c) -6.67cm |
||
|
d) +20cm |
||
|
e) +6.67cm |
||
|
f) -20cm |
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