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Draw a labelled ray diagram of an image formed by a refracting telescope with final image formed at…

Physics20185 marksDrawing
Draw a labelled ray diagram of an image formed by a refracting telescope with final image formed at infinity. Derive an expression for its magnifying power with the final image at infinity.

Draw: ray diagram of an image formed by a refracting telescope with final image formed at infinity

Must show: Objective lens of large aperture and focal length, Eyepiece of small aperture and focal length, Parallel rays from distant object forming intermediate real inverted image at focus Fo, Final image formed at infinity (Fe coincides with Fo)

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Ray Optics and Optical Instruments

From ISC 2018 Physics Paper 1, question 21(a).