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December 18, 2014

December 18, 2014

Posted by **Matrix School 2** on Wednesday, July 22, 2009 at 3:03pm.

Determine the focal lenght of the lens.

solution

1/v + 1/u = 1/f

u=10cm, v=6cm, f=?

6+10/60 = 1/f

70/60 = 1/f

by cross multiply we have

70 x f = 60 x 1

70 x f = 60

f = 60/70 = 6/7 ans.

- Geometric & Wave Optics -
**bobpursley**, Wednesday, July 22, 2009 at 8:32pmsee other.

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