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A boy scout starts a fire by using a lens from his eyeglasses to focus sunlight on kindling 6.0 cm from the lens. The boy scout has a near point of 14.0 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

I don't have any idea to do this problem,please help me.Thanks a lot for anyone who share the answer.)
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