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A lens of focal length 10 cm is placed in contact with a lens of focal length 15 cm. What is the ...

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A lens of focal length 10 cm is placed in contact with a lens of focal length 15 cm. What is the ...

A lens of focal length 10 cm is placed in contact with a lens of focal length −15 cm. What is the focal length of the combination?

▸

–15 cm

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6.0 cm

▸

7.5 cm

▸

−5.0 cm

▸

30 cm

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College Physics

Edition: 5^th

Author: Giambattista

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make7upurs Author

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Brilliant ツ

hpascoe

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Good timing, thanks!

Mkersey12

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Correct

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