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Lenses: If given object height and focal length, is it possible to calculate... |
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| May15-05, 02:49 PM | #1 |
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Lenses: If given object height and focal length, is it possible to calculate...
the image's height? If so, how? I have the formulas, but see no way of making a substitution.
If you wanted to know the problem, it states: The focal length of a camera is 35 mm and the radius of the moon is 1.74 x 106 m. Calculate the diameter of the moon's image that appears on the camera's film. |
| May15-05, 03:53 PM | #2 |
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It's impossible to solve the problem using only the given information. However, if you look up the distance between the earth and the moon from somewhere...
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| May16-05, 09:25 AM | #3 |
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| May16-05, 09:35 AM | #4 |
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Lenses: If given object height and focal length, is it possible to calculate... |
| May16-05, 09:35 AM | #5 |
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For the distance between the Moon and Earth, see this page. http://www.freemars.org/jeff/planets/Luna/Luna.htm
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