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The correct formula for magnifying power...

The correct formula for magnifying powerof a simple microscope is.

A

`m = (1 + (f)/(d))`

B

`m = (1 - (d)/(f))`

C

`m = (1 + (d)/(f))`

D

`m = (1 - (f)/(d))`

Text Solution

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The correct Answer is:
C
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PRADEEP-OPTICS-Exercise
  1. For a normal eye, distance of near point from the eye is.

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  2. The lens used for correcting myopia is.

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  3. The correct formula for magnifying powerof a simple microscope is.

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  4. In a compound microscope, the distance between objective lens and eye ...

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  5. For a total magnification of 175 from a compound microscope, the magni...

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  6. The final image in a astronomical telescope (w.r.t. object) is.

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  7. A telescope uses an objective lens of focal length f0 and an eye lens ...

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  8. What focal length should the reading spectacles have for a person whos...

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  9. An astronomical telescope has a magnifying power of 10. In normal adju...

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  10. A myopia eye can see clearly………but the………cannot be seen distinctly.

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  11. A myopia eye can see clearly………but the………cannot be seen distinctly.

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  12. Presbyopia is also called………. .

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  13. For a normal eye, the least distance of distinct vision is……..and far ...

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  14. Magnifying power of a simple microscope is defined as the………of angles…...

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  15. In a compound microscope, the objective lens and……..are………. .

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  16. Focussing in a compound microscope is carried out by changing the……..f...

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  17. In an astronomical telescope, the distance between……….and…….can be var...

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  18. In normal adjusment of telescope, final image is……. . And distance bet...

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  19. In Cassegrainian telescope, objective lens is………by………… .

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  20. The far point of a myopic person is 150 cm in front of the eye. Calcul...

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