Home
Class 11
PHYSICS
Relative difference of focal lengths of ...

Relative difference of focal lengths of objective and eye lens in the microscope and telescope is given as

A

It is equal in both.

B

It is more in telescope.

C

It is more in microscope.

D

It may be more in any one.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|16 Videos
  • RAY OPTICS

    TARGET PUBLICATION|Exercise CRITICALTHINKING|38 Videos
  • OPTICS

    TARGET PUBLICATION|Exercise EXERCISE|447 Videos
  • REFRACTION OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|15 Videos

Similar Questions

Explore conceptually related problems

If the focal length of the objective lens is increased then

The focal length of the eye-piece of compound microscope is

The focal length of a lens depends on

The focal length of a concave lens with power -4D is______

The focal length of the objective and eye piece of a telescope are respectively 100 cm and 2 cm . The moon subtends and angle of 0.5^@ , the angle subtended by the moon's image will be.

Calculate the focal length of a corrective lens having power +2.5D.

An object of height 4 cm is kept in front of a concave lens of focal length 20 cm. If the object distance is 30 cm, find the position and the height of the image .

The focal length of concave lens, accroding to new Cartesiaon sign conventions is

Assertion : If objective and eye lens of a mcroscope are interchanged then it can work as telsecope. Reason : The object of telescope has large focal lengths.

TARGET PUBLICATION-RAY OPTICS-COMPETITIVE THINKING
  1. An astronomical telesope has objective and eyepiece of focal lengths 4...

    Text Solution

    |

  2. A telescope using an eye piece of focal length 3 cm has a magnificatio...

    Text Solution

    |

  3. In an astronomical telescope in normal adjustment a straight black lin...

    Text Solution

    |

  4. The ratio of the diameter of the sun to the distance between the earth...

    Text Solution

    |

  5. A point object is held above a thin equiconvex lens at its focus. The ...

    Text Solution

    |

  6. A concave lens of glass, refractive index 1.5 has both surfaces of sam...

    Text Solution

    |

  7. Given a point source of light, which of the following can produce a pa...

    Text Solution

    |

  8. choose the correct option

    Text Solution

    |

  9. An infinitely long bar lies alont the adis of cancave mirror of focal...

    Text Solution

    |

  10. Diameter of a plano-convex lens is 6cm and thickness at the centre is ...

    Text Solution

    |

  11. The image of an object, forme by a plano-convex lens at a distance of ...

    Text Solution

    |

  12. By placing a comvex lens of focal length equal to 15.0 cm between an o...

    Text Solution

    |

  13. For a normal eye, the cornea of eye provides a converging power of 40 ...

    Text Solution

    |

  14. A person can see objects clearly only when they lie between 50cm and ...

    Text Solution

    |

  15. The focal length of a plano-convex lens is f and its refractive index ...

    Text Solution

    |

  16. A convex lens of glass (mu(g)=1.45) has focal length f(g) is air. The ...

    Text Solution

    |

  17. Convex lens is made of glass of refractive index 1.5 If the radius of ...

    Text Solution

    |

  18. Relative difference of focal lengths of objective and eye lens in the ...

    Text Solution

    |

  19. Three thin lenses are combined by placing them in contact with each ot...

    Text Solution

    |

  20. If the focal length of the objective lens is increased then

    Text Solution

    |