Astronomical telescope having a objective lens
An astronomical telescope has an objective lens with a focal length of 102 cm and an eyepiece with a focal length of 18cm. When used to view and object that is far far away, such as a star, what is its angular magnification?
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A series RLC circuit has a source of time-varying emf providing 15 V at a frequency f0, with L = 7.90 mH, R = 130 Ω, and C = 0.0510 mF. a) What is the resonant frequency of this circuit?
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