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The magnifying power of a simple microsc...

The magnifying power of a simple microscope can be increased, if we use eye-piece of

A

shorter focal length is used

B

longer focal length is used

C

shorter diameter is used

D

longer diameter is used

Text Solution

Verified by Experts

The correct Answer is:
D
`m=1+(D)/(f)`
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RESONANCE-GEOMATRICAL OPTICS -Exercise-1
  1. A Galileo telescope has an objective of focal length 100cm and magnif...

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  2. The convex lens is used in-

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  3. The magnifying power of a simple microscope can be increased, if we us...

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  4. The focal length of the objective lens of a compound microscope is

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  5. Resolving power of a microscope depends upon

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  6. An astronomical telescope has an eyepiece of focal-length 5cm. If the ...

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  7. A person with a defective sight is using a lens having a power of +2D....

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  8. The focal lengths of the objective and eye- lens of a microscope are 1...

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  9. If the focal length of objective and eye lens are 1.2 cm and 3 cm resp...

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  10. Find the angle fo deviation (both clockwise and anti-clock wise)suf...

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  11. Figures shows a plane mirror on which a light ray is incident, if t...

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  12. A light ray is incident on a plane mirror, which after getting refl...

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  13. Sun rays are incident at an angle of 24^(@) with the horizon. How ca...

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  14. Two plane mirrros are placed as shown in the figure and a point objec...

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  15. A point object is placed (0,0) and a plane mirror 'M' is placed, incl...

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  16. A rod of length 5cm lies along the principle axis of a concave mirrro...

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  17. A point source is at a distance 35cm on the optical axos from a sph...

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  18. Find the diameter of the image of the moon formed by a spherical conc...

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  19. The radius of curvature of a convex spherical mirror is 1.2m. How fa...

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  20. A converging beam of light rays in incident on a concave spherical ...

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