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floridianfisher
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Homework Statement
A boy scout starts a fire by using a lens from his eyeglasses to focus sunlight on kindling 5.2 cm from the lens. The boy scout has a near point of 15.2 cm. When the lens is used as a simple magnifier, give values for the following conditions. (Hint: Assume a "normal" eye.)
(a) What is the maximum magnification that can be achieved
(b) What is the magnification when the eye is relaxed
Homework Equations
1/p + 1/q = 1/f
Mmax= 1+ 25cm/f
The Attempt at a Solution
I used p=+5.2 and q= -(15.2)-((1/2)5.2)=-17.8
then 1/5.2 - 1/17.8 +1/f
f= 7.34
so, Mmax= 1+ 25/7.34= 4.406 but that is wrong?!?
can anyone help?