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In many experimental set-ups, the source...

In many experimental set-ups, the source and screen are fixed at a distance say D and the lens is movable.Show that there are two positions for the lens,for which an image is formed on the sceen.Find the distance between these points and the ratio of the image sizes for these two points.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. In many experimental set-ups, the source and screen are fixed at a dis...

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  2. To get five images of a single object, one should have two plane mirro...

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  3. A motor car is fitted with a convex driving mirror of focal length 20 ...

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  4. An experiment is performed to find the refractive index of glass using...

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  5. A transparent solid cylindrical rod has a refractive index of (2)/(sqr...

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  6. In an optics experiment, with the position of the object fixed, a stud...

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  7. A student measures the focal length of a convex lens by putting an obj...

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  8. Which of the following phenomenon is used in optical fiber?

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  9. The refractive index of water is 4//3.How much time will light take to...

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  10. A plano convex lens of refractive index 1.5 and radius of curvature 30...

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  11. Two lenses of powers+15D and -5D are in contact with each other. What ...

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  12. A convex lens of refractive index 1.5 has a focal length of 18 cm in a...

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  13. The refractive indices of the crown glass for blue and red light are 1...

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  14. The total magnification produced by a compound microscope is 20,while ...

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  15. Explain with reason,how the resolving power of an astronomical telesco...

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  16. An initially parallel cylindical beam travels in a medium of refractiv...

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  17. An initially parallel cylindical beam travels in a medium of refractiv...

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  18. An initially parallel cylindical beam travels in a medium of refractiv...

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  19. What is the main condition to produce interference of light?

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  20. In Young's double slit experiment what is the shape of interference fr...

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  21. In a Young's double slit experiment,the intensity at a point,where the...

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