What types of lens are in a reflecting telescope?

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Explore Alberta's Grade 8 Science curriculum on Light and Optical Systems. Test your knowledge with engaging quizzes including flashcards and multiple choice questions. Prepare effectively for your exam!

Multiple Choice

What types of lens are in a reflecting telescope?

Explanation:
A reflecting telescope uses a curved mirror to collect and focus light, forming an image, and then an eyepiece lens to magnify that image for the eye. The main light-gathering and focusing element is a concave mirror, not a lens, and the magnification comes from the eyepiece lens. That combination explains why the description is a concave mirror with an eyepiece lens. Planar mirrors don’t focus light to form a clear image, and diverging lenses or using lenses alone would belong to other telescope designs, not reflecting ones.

A reflecting telescope uses a curved mirror to collect and focus light, forming an image, and then an eyepiece lens to magnify that image for the eye. The main light-gathering and focusing element is a concave mirror, not a lens, and the magnification comes from the eyepiece lens. That combination explains why the description is a concave mirror with an eyepiece lens. Planar mirrors don’t focus light to form a clear image, and diverging lenses or using lenses alone would belong to other telescope designs, not reflecting ones.

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