- #1

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I'm really confused about this question... Can someone please help me????

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- Thread starter leehom
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- #1

- 24

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I'm really confused about this question... Can someone please help me????

- #2

Chi Meson

Science Advisor

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What's the relationship between the center of curvature and the focal point?

- #3

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centre of curvature is half the focal point and the mirror equation is 1/di + 1/do = 1/f

- #4

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but i still don't understand how that answers the question..

- #5

Chi Meson

Science Advisor

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Center of curvature is not half the focal length, it's the other way 'round.

Center of curvature is twice the focal length. So focal length is "f" and the object distance is "2f." Do a little algebra and find the image.

- #6

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Would the focal length be equal to the object distance?

- #7

Chi Meson

Science Advisor

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Would the focal length be equal to the object distance?

No, try again. You're close.

But I have to go now, keep at it.

- #8

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Okay, thnx for your help

- #9

Kurdt

Staff Emeritus

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All you have to do is substitute 2f = d_{o} into the equation you listed above and solve for d_{i}.

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