In an astronomical telescope, the distance between the objective and the eyepiece is called
Correct answer: C. Length of the telescope
- A. Magnifying Power of the telescope
- B. Width of the telescope
- C. Length of the telescope
- D. Height of the telescope
Explanation
The tube length g is the distance between the secondary focal point of the objective and the primary focal point of the eyepiece. The intermediate image serves as the object for the eyepiece.
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About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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