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Answer the following questions: (b) In...

Answer the following questions:
(b) In viewing through a magnifying glass, one usually positions one’s eyes very close to the lens. Does angular magnification change if the eye is moved back?

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(b) Yes, it decreases a little because the angle subtended at the eye is then slightly less than the angle subtended at the lens. The effect is negligible if the image is at a very large distance away. [Note: When the eye is separated from the lens, the angles subtended at the eye by the first object and its image are not equal.]
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  11. Answer the following questions: (b) In viewing through a magnifying ...

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  13. Answer the following questions: (d) Why must both the objective and ...

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  14. Answer the following questions: (e) When viewing through a compound ...

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  15. An angular magnification (magnifying power) of 30X is desired using an...

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  16. A small telescope has an objective lens of focal length 140cm and an e...

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