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The image viewed in a telescope is a magnified virtual image. To achieve this, a

ID: 1323236 • Letter: T

Question

The image viewed in a telescope is a magnified virtual image. To achieve this, a telescope must have

a negative eyepiece lens with a large focal length.

a negative objective lens with a large focal length.

a positive objective lens with a small focal length.

a positive eyepiece lens with a small focal length.

a.

a negative eyepiece lens with a large focal length.

b.

a negative objective lens with a large focal length.

c.

a positive objective lens with a small focal length.

d.

a positive eyepiece lens with a small focal length.

Explanation / Answer

All refracting telescopes use the same principles. The combination of an objective lens  and some type ofeyepiece  is used to gather more light than the human eye is able to collect on its own, focus it and present the viewer with a brighter, clearer, and magnified virtual image .

lens (F' L1 / y