The terrestrial telescope has one extra lens more than the astronomical telescope. The extra lens is for
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Correct Answer: Option D
Explanation:
The extra lens in the terrestrial telescope mounted at the middle between the objective lens and the eye piece is to re-invert the image so that it is upright.
The extra lens in the terrestrial telescope mounted at the middle between the objective lens and the eye piece is to re-invert the image so that it is upright.