Unformatted text preview: . 0 cm and focal length 50 cm. Consider diﬀraction, and estimate the width of a distant star in the focal plane of the objective. What focal length should you choose for the eyepiece to get an angular magniﬁcation of 10? 3. Crawford 9.32 4. Crawford 9.60. Hint: use the formula(s) for angular deﬂection discussed in class. Add the following questions: evaluate f (deﬁned in the problem) for a pair consisting of a converging lens of focal length f 1 and a diverging lens of focal lengthf 1 , for two cases: (a) rays incident from the left; (b) rays incident from the right. 5. Anderson, 35 6. Anderson, 36...
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 Spring '08
 Nelson
 Magnetism, Work, focal length f1

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