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What is the eye ring of a telescope or m...

What is the eye ring of a telescope or microscope ?

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The image of the objective lens formed by the eye piece is called eye ring. This is the ideal position of the eye for observing the image.
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PRADEEP-RAY OPTICS-Very Short Answer (d)
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  11. What do you understand by normal adjustment of a telescope ?

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  12. What is the distance between objective and eye lens of telescope in no...

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  13. Objective of a compound microscope should have small focal length. Why...

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  14. why should objective of a telescope have larger focal length ?

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  15. Can a terrestrial telescope be used for observing astronomical objects...

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  16. What is the main limitation of Galileo's telescope ?

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  19. What is meant by focal plane of a lens ?

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