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What causes chromatic aberration?...

What causes chromatic aberration?

A

Central rays

B

Marginal rays

C

Difference in radii of curvatureof its surfaces.

D

Variation of focal length of a lens with colour.

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TARGET PUBLICATION-OPTICS-EXERCISE
  1. Pick the correct statement from the following.

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  2. Rays of different colours fail to converge to a point after passing th...

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  3. What causes chromatic aberration?

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  4. Achromatic combination can not be achieved by using

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  5. An achromatic combination of lenss produce.

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  6. In presence of aberration, circular image is formed of a point.

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  7. Spherical aberration of a convex and a concave lens respectively is

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  8. An optical instrument , in general, extends our range of vision by

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  9. The least distance of distinc vision for a young adult with normal vis...

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  10. A norml eye is unable to see objects at a distance less than distance ...

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  11. The clearity of image formed on retina of eye depends on the

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  12. A convex lens of the short focal length held very close to the eye, to...

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  13. The magnifying power of simple microscope is

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  14. A perosn using a lens as a simple microscope sees an

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  15. The magnifying power of simple microscope, when image is formed at DDV...

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  16. Magnification of simple microscope when image is at infinity is given ...

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  17. The magnifying power of simple microscope is maximum when image is for...

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  18. When a convex lens of 2.5 cm focal length is used as a magnifying glas...

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  19. The compound microscope is used to see

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  20. Compound microscope is NOT used in

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