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A reflecting type telescope has a concav...

A reflecting type telescope has a concave reflector of radius of curvature 120 cm.Calculate the focal length of eye-piece to secure a magnification of 20.

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MODERN PUBLICATION-Optical Instruments-EXERCISE
  1. A reflecting type telescope has a concave reflector of radius of curv...

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  2. Explain briefly the structure of human eye.

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  3. Give a labelled diagram of the eye and write the function of its main ...

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  4. What is myopia?What are its causes ?Name the type of the lens to corr...

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  5. What is hypermetropia?

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  6. What is Accomodation of eye? Write various defects of vision and their...

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  7. What is th magnification produced by a single convex lens used as simp...

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  8. Explain the working of simple microscope and find an expression for it...

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  9. Draw a ray diagram to show image formation in a compound microscope. F...

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  10. Explain the working of simple microscope and find an expression for it...

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  11. Explain the working of simple microscope and find an expression for it...

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  12. Explain the working of simple microscope and find an expression for it...

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  13. Explain the working of simple microscope and find an expression for it...

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  14. What is a microscope? Explain simple microscope. Calculate its magnify...

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  15. Draw a labelled ray diagram of a compound microscope. Explain its work...

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  16. Explain the working of simple microscope and find an expression for it...

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  17. Define the magnifying power of compound microscope.

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  18. Draw a ray diagram to show image formation in a compound microscope. F...

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  19. Draw a labelled ray diagram of a compound microscope. Explain its work...

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  20. Draw a ray diagram to show image formation in a compound microscope. F...

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  21. with the help of labelled diagram, explain the formation of final imag...

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