Answer to Question #118054 in Optics for Priya Mehra

Question

Name three commonly used eyepieces. Which eyepiece is used in our lab spectrometer and why?

Answer 1

Negative lens, Convex lens, Huygens lens.

Since there are two approved dimensions of the telescope eyepieces, 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.