- The diagram consists of an optical axis, an eyepiece, an objective mirror, and a secondary mirror.- Incoming rays from a distant object reflect off the objective mirror to the secondary mirror and then to the eyepiece. Advantages of Reflecting Telescope over Refracting Telescope1. Large ...
An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find : nature of the image View Solution A convex lens of focal length 30 cm forms an image of height 2 cm for an object situated at infinity. If a concave lens of focal length 20 cm is placed...
Hi, I did a homework problem in which I was to show that a refracting telescope, modeled as a sequence of two thin lenses separated by a distance equal to the sum of their focal lengths, is capable of producing angular magnification. In my course we have been solving these questions in...
For a discussion of pupils, see the telescope, below. Sign in to download full-size image FIGURE 11. Three rays used for constructing an image. (1) A ray incident from −∞. (2) A ray directed at the primary principal point of the lens. (3) A ray directed at the primary focal ...
Hence the transverse shift of the chief ray at the image is 2αmkf1, a shift in the positive y-direction for a Cassegrain or Gregorian telescope with mk and α > 0. For decenter l and no tilt, the on-axis chief ray emerges from the secondary at angle 2φ relative to the z-axis,...
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