A refracting astronomical telescope has objective and
A refracting astronomical telescope has objective and eyepiece lenses of focal lengths 20 cm and 10 cm respectively. What is the angular magnification of this instrument?
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a refracting astronomical telescope has objective and eyepiece lenses of focal lengths 20 cm and 10 cm respectively
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the solid curve below shows the trigonometric function fx it has the form fx acosx also shown as dotted curve is the
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