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**Unformatted text preview: **θ 0 is the angle subtended by the object when it is placed at the near point of the eye and no lens is used. When the eye is relaxed, the angular magnification is f m cm 25 = [25.6] Section 25.4: The Compound Microscope The overall magnification of a compound microscope of length L is the product of the magnification produced by the objective, of focal length f o , and the magnification produced by the eyepiece, of focal length f e : ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ − = e o f f L M cm 25 [25.7] Section 25.5: The Telescope The angular magnification of a telescope is e o f f m = [25.8] where f o is the focal length of the objective and f e is the focal length of the eyepiece. Section 25.6: Resolution of Single-Slit and Circular Apertures Two images are said to be just resolved when the central maximum of the diffraction pattern for one image falls on the first minimum of the other image....

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