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is defined as the ratio of the heigth of...

__________ is defined as the ratio of the heigth of the image to the heigth of a object.

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SURA PUBLICATION-OPTICS-ADDITIONAL QUESTIONS & ANSWER (Fill in the blanks (Covers whole unit))
  1. lenses are used in camera lenses.

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  2. The distance and perpendicular to the principal axis is taken as posi...

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  3. is defined as the ratio of the heigth of the image to the heigth of a ...

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  4. Any optically will have a refractive index.

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  5. Convex lens mostly produces image.

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  6. Power of a lens is numerically defined as the reciprocal of its .

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  7. and the lens maker's formula are applicable to only thin lenses.

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  8. protects the internal parts of the eye.

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  9. is the coloured portion of the eye.

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  10. A thin and transparent layer on the surface of eyeball is .

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  11. Central part of eye and pathway for the light to retina is .

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  12. Eye lens is fixed between the muscles.

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  13. Eye lens is in nature.

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  14. The ability of the eye lens to focus nearby as wll as the distant obje...

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  15. is the centre part of the iris.

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  16. Power of accommodation is achieved by changing the of the eye lens.

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  17. The least distance of distinct vision is .

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  18. The tiny dust particles present in the air of the room scatter the bea...

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  19. Cylindrical lenses are also called as lenses.

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  20. Both the defects of vision-myopia as well as hypermetropia can be corr...

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