- Sections
- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
- F. Fluid Mechanics
- G. Vibrations & Mechanical Waves
- H. Sound
- I. Thermodynamics
- J. Electrostatics & Magnetostatics
- K. Electromagnetic Principles
- L. Geometrical Optics
- M. Wave Optics
- N. Spectra & Color
- O. Vision
- P. Modern Physics
L7-13. Optical Board - Galilean Telescope
Purpose
Model the optics of a Galilean telescope.
Image
Description
A Galilean telescope is formed by a long positive focal length objective lens and a short negative focal length eyepiece, so it produces an erect image. The lens at the left is used to produce parallel rays of light, as if from a distant star. The parallel beam of rays entering the objective lens is wider than that emerging from the eyepiece, indicating the ability of the telescope to "gather" light. When the position of the "star" is changed by moving the source up, the image is moved up and the angle at which it is viewed is magnified relative to the incoming light, indicating the ability of
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See pagesl1. light sources & light rays
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See pagesl2. plane mirrors
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See pagesl3. curved mirrors
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See pagesl4. refraction
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See pagesl5. total internal reflection
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See pagesl6. lenses
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See pagesl7. optical instruments
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See pagesl1. light sources & light rays
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See pagesl2. plane mirrors
-
See pagesl3. curved mirrors
-
See pagesl4. refraction
-
See pagesl5. total internal reflection
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See pagesl6. lenses
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See pagesl7. optical instruments