An astronomical telescope in normal adjustment hasa tube length of 93 cm and magnification (angular) of 30. If the eye-piece is to be drawn out by 3 cm to focus a near object, with the final image at infinity, find how far away is the object and the magnification (angular) is this case.

An astronomical telescope in normal adjustment hasa tube length of 93

1.	An astronomical telescope in normal adjustment hasa tube length of 93 cm and magnification (angular) of 30. If the eye-piece is to be drawn out by 3 cm to focus a near object, with the final image at infinity, find how far away is the object and the magnification (angular) is this case.
Answer» ANSWER :`27.9 m, 31`

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An astronomical telescope in normal adjustment hasa tube length of 93 cm and magnification (angular) of 30. If the eye-piece is to be drawn out by 3 cm to focus a near object, with the final image at infinity, find how far away is the object and the magnification (angular) is this case.

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