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Focal Length experiment readings

by bishshoy007
Tags: experiment, focal, length, readings
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Feb12-09, 03:31 AM
P: 7
Hello, I need help with the lens experiment, the aim of which is to determine the focal length of a concave lens by combining it coaxially with a convex lens.

Given the focal length of the CONVEX lens is 15cm.
and the focal length of the CONCAVE lens is 30cm.

Can you give me a set of reading, plotting which on the graph paper the slope of the st. line shall give the CONCAVE lens' focal length.

Thanks in advance.
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Feb12-09, 03:47 AM
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Don't you know how to calculate the focal length of a compound lens?


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