Home
Class 12
PHYSICS
Two lenses of powers 10D - 5D are placed...

Two lenses of powers 10D - 5D are placed in contact
Calculate the power of the new lens.

Promotional Banner

Topper's Solved these Questions

  • REFRACTION OF LIGHT

    MODERN PUBLICATION|Exercise EXERCISE|168 Videos

  • REFLECTION OF LIGHT

    MODERN PUBLICATION|Exercise EXERCISE|57 Videos

  • SEMICONDUCTOR DEVICES

    MODERN PUBLICATION|Exercise EXERCISE|174 Videos

Similar Questions

Explore conceptually related problems

Two lenses of powers 10D - 5D are placed in contact Calculate the power of the new lens.

Two lenses having powers + 6 D and - 4D are placed in contact.The power of the combintin is

If two lenses of power +1.5 D and +1.0 D are placed in contact ,then the effective power of combination will be

Two lenses of power +10 D and -5 D are placed in contact. Where should an object be held from the lens,so as to obtain a virtual image of magnification 2?

Two lenses of power 15.5 D and -5.5 D are placed in contact.What is teh focal length of the combbination?

Two lenses of powers+15D and -5D are in contact with each other. What is the focal length of combination?

Define power of a lens

…is the unit of power of the lens

MODERN PUBLICATION-REFRACTION OF LIGHT-EXERCISE
  1. The image obtained iwth a convex lewns is ereect and its length is fou...

    Text Solution

    |

  2. A lens of focal length 12 cm forms an upright image three times the si...

    Text Solution

    |

  3. A lens of focal length 12 cm produces a virtual image,whose linear dim...

    Text Solution

    |

  4. A lens has a power of +5 D in air.If completely immersed in water,what...

    Text Solution

    |

  5. Find the ratio of the powers of a glass lens in water and in air .Give...

    Text Solution

    |

  6. A glass convex lens has a power of +10 D.When ths lens is totally imme...

    Text Solution

    |

  7. What is the focal length of a convex lens of focal length 30cm in cont...

    Text Solution

    |

  8. A concave lens is placed in contact with a convvex lens of focal lengh...

    Text Solution

    |

  9. Two thin lenses of focal lenths + 10 cm and - 5 cm are kept in contact...

    Text Solution

    |

  10. Two thin lenses of focal lenths + 10 cm and - 5 cm are kept in contact...

    Text Solution

    |

  11. Two lenses of focal length 10 cm and -20 cm are placed in contact .Wha...

    Text Solution

    |

  12. A convex lens of focal lenth 30 cm and a concave lens of focal length ...

    Text Solution

    |

  13. Two lenses of power 15.5 D and -5.5 D are placed in contact.What is te...

    Text Solution

    |

  14. Two thin lenses of pwer +5D and -3D are in contact. What is the focal ...

    Text Solution

    |

  15. A concave lens is kept in contact with a convex lens of focal length 2...

    Text Solution

    |

  16. Two lenses of power +15 D and -5 D are in contact with each other form...

    Text Solution

    |

  17. Two lenses of power +15 D and -5 D are in contact with each other form...

    Text Solution

    |

  18. A compound lens is made of a convex lens of power 10 D and a concave l...

    Text Solution

    |

  19. Two lenses of powers 10D - 5D are placed in contact Calculate the powe...

    Text Solution

    |

  20. Two lenses of power +10 D and -5 D are placed in contact. Where should...

    Text Solution

    |