Home
Class 10
PHYSICS
Find the focal length of a convex lens w...

Find the focal length of a convex lens which produces a virtual image at 10 cm from the lens when an object is placed at 5 cm from the lens .

Promotional Banner

Topper's Solved these Questions

  • LENSES

    NAVNEET PUBLICATION|Exercise EXERCISE|280 Videos

  • HEAT

    NAVNEET PUBLICATION|Exercise EXERCISE|135 Videos

  • REFRACTION OF LIGHT

    NAVNEET PUBLICATION|Exercise EXERCISE|141 Videos

Similar Questions

Explore conceptually related problems

Find the focal length of a convex lens which produces a real image at 60 cm from the lens when an object is placed at 40 cm in front of the lens .

The focal length of a convex lens is 20 cm.What is the power?

A lens with a focal length of 25 cm produces real image of an object at a distance of 50 cm from the lens. At what distance the object placed from the lens?

If the focal length of the objective lens is increased then

Find the power of a convex lens of focal length 40 cm.

In an experiment to find the focal length of a concave mirror, an object is placed at a distance of 40 cm from it and forms image at 24 cm from the mirror, then the focal length is

Find the power of a convex lens of focal length 12.5 cm.

A student measures the focal length of a convex lens by keeping an object pin at a distance u from the lens and measuring the distance v of the image pin. The graph between v versus u plotted will look like

A student measures the focal length of a convex lens by putting an object pin at a distance u from the lens and measuring the distance v of the image pin. The graph between u and v plotted by the student should look like

NAVNEET PUBLICATION-LENSES-EXERCISE
  1. Solve the following examples/ numerical problems: Calculate the foca...

    Text Solution

    |

  2. Three lenses having power 2, 2.5 and 1.7 D are kept touching in a row....

    Text Solution

    |

  3. Solve the following examples/ numerical problems: Two convex lenses ...

    Text Solution

    |

  4. Solve the following examples/ numerical problems: Two convex lenses ...

    Text Solution

    |

  5. Solve the following examples/ numerical problems: < br > If a convex l...

    Text Solution

    |

  6. Find the focal length of a convex lens which produces a real image at ...

    Text Solution

    |

  7. Find the focal length of a convex lens which produces a virtual image ...

    Text Solution

    |

  8. A real image is obtained at 30 cm from a convex lens of focal length 7...

    Text Solution

    |

  9. An object is kept at 20 cm in front of a convex lens its real image is...

    Text Solution

    |

  10. An object is kept at 10 cm in front of a convex lens . Its image is f...

    Text Solution

    |

  11. An object is kept at 60 cm in front of a convex lens of focal length 1...

    Text Solution

    |

  12. An object of height 2 cm is kept at 30 cm from a convex lens . Its rea...

    Text Solution

    |

  13. If the power of a lens is 4 dioptres , find its focal length.

    Text Solution

    |

  14. Find the power of a convex lens of focal length 40 cm.

    Text Solution

    |

  15. Find the power of a convex lens of focal length 12.5 cm.

    Text Solution

    |

  16. If for a lens , f= -20 cm, what is the power of the lens ?

    Text Solution

    |

  17. An object of height 4 cm is kept in front of a concave lens of focal l...

    Text Solution

    |

  18. If two convex lenses of focal lengths 10 cm and 5 cm are kept in conta...

    Text Solution

    |

  19. If a convex lens of focal length 20 cm and a concave lens of focal len...

    Text Solution

    |

  20. If a concave lens of focal length 12 cm and a convex lens of focal len...

    Text Solution

    |