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The distance between the object and the ...

The distance between the object and the screen is d (greater than 4 times the focal length of a convex lens). Real images of the object are obtained on the screen for two positions of the lens that are separated by distance x apart. The ratio of size of the images in the two positions of the lens are

A

`sqrt((D)/(x))`

B

`(D^2)/(x^2)`

C

`sqrt((x)/(D))`

D

`((D-x)^2)/((D+x)^2)`

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The correct Answer is:
A
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CP SINGH-REFRACTION AT SPHERICAL SURFACES-EXERCISES
  1. A thin converging lens of focal length f is placed bewteen an obejct a...

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  2. In the displacement method, a convex lens is placed in between an obje...

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  3. The distance between the object and the screen is d (greater than 4 ti...

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  4. In displacement method, the lengths of images in the two positions of ...

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  5. The distance between an object and the screen is 100cm. A lens produce...

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  6. A screen is placed a distance 40 cm away from an illuminated object. A...

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  7. In an experiment with a lens the object distance u versus image distan...

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  8. The graph between the object distance along the X-axis and image dista...

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  9. The graps shows the variation of magnification m produced by as conve...

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

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

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  12. The graph between the lateral magnification (m) produced by a lens and...

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  13. For a convex lens, if real image is formed the graph between (u+v) and...

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  14. Diameter of a plano-convex lens is 6cm and thickness at the centre is ...

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  15. An object is placed at a distance x1 from the principal focus of a len...

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  16. A point object O is placed on the principal axis of a convex lens of f...

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  17. An illuminated object is placed on the principal axis of a converging ...

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  18. A split lens has its two parts separated by a and its focal length is ...

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  19. When a biconvex lens of glass having refractive index 1.47 is dipped i...

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  20. A convex lens if in contact with concave lens. The magnitude of the ra...

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