Question

Give the construction of a telescope. Which eye-piece is used in the telescope of spectrometer

and why?​

Answer 1

Answer:

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Answer 2

Answer:

An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is so named because it is usually the lens that is closest to the eye when someone looks through the device. ... The amount of magnification depends on the focal length of the eyepiece.

And this dimensions are decided by the width of the eyepiece barrel which goes into the telescope. Therefore the eyepiece used in the telescope of the spectrometer is that eyepiece, which most properly fits in that telescope.