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A man with normal near- point (25c m) re...

A man with normal near- point (25c m) reads a book with small print using a magnifying glass L a thin convex lens of focal length 5 cm.
(i) What is the closest and the farthest distance at which he can read the book when viewing thorugh the magnifying glass ?
(ii) What is the maximum and the minimum angular magnification (magnifying power) possible using the above simple microscope ?

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SL ARORA-OPTICAL INSTRUMENTS-Problems for self practice
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  3. (a) An object is seen through a simple microscope of focal length 12cm...

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  4. A converging lens of focal length 6.25 cm is used as a magnifying glas...

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  6. A magnifying glass is a combination of a convex lens of focal length 5...

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  7. Magnifying power of a simple microscope A is 1.25 less than that of a ...

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  8. A child has near point at 10 cm. What is the maximum angular magnifica...

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  9. The magnification produced by the objective of a compound microscope i...

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  10. A convex lens of focal length 5cm is used as a simple microscope. What...

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  11. The focal lengths of the objective and eye piece of a compound microsc...

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  12. The focal lengths of the objective and the eyepiece of a compound micr...

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  13. The focal lengths of the objective and eye piece of a microscope are 2...

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  14. A compound microscope is made using a lens of focal 10 mm as objective...

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