Magnification of the astronomical telescope is:
Correct answer: A. f₀ + fₑ
- A. f₀ + fₑ
- B. f₀/ fₑ
- C. fₑ/ f₀
- D. (1+ f0/ fe )× L/ f0)
Explanation
The magnification (M) of an astronomical telescope is given by M=(1+fe f0 )×f0 L , where f0 is the focal length of the objective lens, fe is the focal length of the eyepiece, and L is the length of the telescope.
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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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