Home
Class 12
PHYSICS
The focal length of the objective lens o...

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

A

arbitrary

B

less than the focal length of eyepiece

C

equal to the focal length of eyepiece

D

greater than the focal length of eyepiece

Text Solution

Verified by Experts

The correct Answer is:
B
N//a
Promotional Banner

Topper's Solved these Questions

  • GEOMATRICAL OPTICS

    RESONANCE ENGLISH|Exercise Exercise-2|62 Videos

  • GEOMATRICAL OPTICS

    RESONANCE ENGLISH|Exercise Exercise-3|80 Videos

  • GEOMATRICAL OPTICS

    RESONANCE ENGLISH|Exercise Problem|33 Videos

  • EXPERIMENTAL PHYSICS

    RESONANCE ENGLISH|Exercise PART -II|10 Videos

  • GRAVITATION

    RESONANCE ENGLISH|Exercise HIGH LEVEL PROBLEMS|16 Videos

Similar Questions

Explore conceptually related problems

The focal length of the objective of a compound microscope is f_0 and its distance from the eyepiece is L. The object is placed at a distance u from the objective. For proper working of the instrument.,

The focal lengths of the objective and eyelens of a microscope are 1.6 cm and 2.5 cm respectively. The distance between the two lenses is 21.7 cm. If the final image is formed at infinity, the distance between the object and the objective lens is :

The focal lengths of the objective and eyelens of a microscope are 1.6 cm and 2.5 cm respectively. The distance between the two lenses is 21.7 cm. If the final image is formed at infinity, the distance between the object and the objective lens is :

The focal lengths of the objective and eye - lens of a microscope are 1cm and 5 cm respectively. If the magnifying power for the relaxed eye is 45 , then the length of the tube is

In a compound microscope , the magnificent virtual image is found at a distance of 25 cm from the eye-piece . The focal length of its objective lens is 1 cm. If the microspore is 20 cm , then the focal length of the eye-piece lens ( in cm) is .................

The focal length of objective and eye lens of a microscope are 4 cm and 8 cm respectively. If the least distance of distinct vision is 24 cm and object distance is 4.5 cm from the objective lens, then the magnifying power of the microscope will be

The focal length of objective and eye lens of a microscope are 4 cm and 8 cm respectively. If the least distance of distinct vision is 24 cm and object distance is 4.5 cm from the objective lens, then the magnifying power of the microscope will be

The focal length of objective and the eyepiece of a compound microscope are 1cm and 5cm. An object is placed at a distance of 1.1 cm from the objective and if the final image is formed at infinity the magnifying power and distance between the lenses are respectively

The focal lengths of the objective and the eyepiece of a compound microscope are 2.0cm and 3.0cm, respectively. The distance between the objective and the eyepiece is 15.0cm. Th final image formed by the eyepiece is at infinity. The two lenses are thin. The distance, in cm, of the object and the image produced by the objective, mesured from the objective lens, are respectively.

If f_o and f_e are the focal lengths of the objective lens and eye-piece lens respectively for a telescope, the length of telescope in normal adjustment is

RESONANCE ENGLISH-GEOMATRICAL OPTICS -Exercise-1
  1. The convex lens is used in-

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  4. Resolving power of a microscope is given by

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. A rod of length 10 cm lies along the principal axis of a concave mirr...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  20. A point object is placed on the principle axis at 60cm in fornt ...

    Text Solution

    |