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Telescope

Which of the ...

Question

Which of the following is not correct about Galilean telescope?

A

Its objective is a convex lens

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B

Its eyepiece is a concave lens

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C

The final image is erect

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D

The final image is real

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Solution

The correct option is D The final image is real
A Galilean telescope has one convex lens and one concave lens. The concave lens serves as the ocular lens, or the eyepiece, while the convex lens serves as the objective.
The image formed is virtual, erect and magnified.

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