JAMB - Physics (2001 - No. 10)
The terrestrial telescope has one extra lens more than the astronomical telescope. The extra lens is for
improving the sharpness
creating an inverted image
magnification of the image
erection of the image
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.
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