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Physics Question Please Help?
A plano-convex (Fig. 23-29) is to have a focal length of 27.8 cm. If it is done quartz, which must be the radius of curvature of the convex surface?
The equation for lensmaker a plano-convex lens is 1 / f = (n - 11) * (1 / R) for fused quartz, n = 1.459 1 / f = 0.459 R / R = 60.6 cm = 27.8/0.459
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