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Problem 35.11: Build a converging lens
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Light rays from a point source, initially in air, are incident on a lens made from a material with an index of refraction of 2.5 (position is given in centimeters). The radius of curvature of the left side of the lens is -10 cm (10-cm radius and concave, so rays diverge upon entering it). You can change the radius of the right side. Restart. Build a lens so that the light rays from the point source will converge on the green screen.
- What is the focal length of this lens?
- Calculate the radius of curvature of the right side of the lens, then test your calculation.
Problem authored by Anne J. Cox.