Chapter 33: Problem 84
A telescope is advertised as providing a magnification of magnitude 41 using an eyepiece of focal length \(4.0 \cdot 10^{1} \mathrm{~mm}\). What is the focal length of the objective?
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To study a tissue sample better, a pathologist holds a \(5.00-\mathrm{cm}\) focal length magnifying glass \(3.00 \mathrm{~cm}\) from the sample. How much magnification can he get from the lens?
A converging lens will be used as a magnifying glass. In order for this to
work, the object must be placed at a distance
a) \(d_{\mathrm{o}}>f\).
c) \(d_{\mathrm{o}}
A plastic cylinder of length \(3.0 \cdot 10^{1} \mathrm{~cm}\) has its ends ground to convex (from the rod outward) spherical surfaces, each having radius of curvature \(1.0 \cdot 10^{1} \mathrm{~cm}\). A small object is placed \(1.0 \cdot 10^{1} \mathrm{~cm}\) from the left end. How far will the image of the object lie from the right end, if the index of refraction of the plastic is \(1.5 ?\)
A converging lens of focal length \(f=50.0 \mathrm{~cm}\) is placed \(175 \mathrm{~cm}\) to the left of a metallic sphere of radius \(R=100 . \mathrm{cm} .\) An object of height \(h=20.0 \mathrm{~cm}\) is placed \(30.0 \mathrm{~cm}\) to the left of the lens. What is the height of the image formed by the metallic sphere?
Two converging lenses with focal lengths \(5.00 \mathrm{~cm}\) and \(10.0 \mathrm{~cm}\), respectively, are placed \(30.0 \mathrm{~cm}\) apart. An object of height \(h=5.00 \mathrm{~cm}\) is placed \(10.0 \mathrm{~cm}\) to the left of the \(5.00-\mathrm{cm}\) lens. What will be the position and height of the final image produced by this lens system?
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