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A concave lens is used to correct myopia...

A concave lens is used to correct myopia.
True/False

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Convex lens is used to correct :

A convex lens is used to correct hypermetropia. True/False

Concave lens is employed to correct

Assertion : Concave lens is used to correct myopia or short-sightedness. Reason : A concave lens of suitable focal length diverges the parallel rays from the distant objects as if they are coming from the far point of the myopic eye. This helps the eye lens to form a clear image at the retina.

The lens used for correcting myopia is.

What is the sign of the power of the lens used to correct myopia ?

A __________ lens is used to correct myopia and a __________ lens is used to correct hypermetropia.

NAVNEET PUBLICATION - MAHARASHTRA BOARD-LENSES-True and False
  1. A concave lens is used as a magnifying glass.

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  2. A convex lens is used as a simple microscope . True/False

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  3. A concave lens is used to correct myopia. True/False

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  4. A convex lens is used to correct hypermetropia. True/False

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  5. When red light falls on the eyes , the cells responbing to red light ...

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  6. When an object is placed in front of a concave lens , its image is obt...

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  7. The image formed by a concave lens is always virtual.

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  8. The principal focurs of a convex lens is virtual.

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  9. An object of height 2 cm forms an image of height 3 cm when placed in ...

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  10. Absence of rod like cells results in colour blindness. True/False

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  11. Nearsightedness can be corrected using spectacles having convex lenses...

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  12. Farsightedness can be corrected using spectacles having lenses of suit...

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  13. As one grows old, ciliary muscles become weak. True/false

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  14. In a simple microscope, the object is placed within the focal length o...

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  15. A compound microscope forms an erect and real image of a small object.

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  16. In a compound microscope, a real image acts as an object for the eye...

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  17. In television, we see a continuous picture due to persistence of visio...

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  18. The conical cells can respond differently to red, green and blue colou...

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  19. The rod like cells respond to colours, and communicate the presence of...

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  20. The conical cells respond to the intensity of light and communicate th...

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