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

Find the focal length of a lens of power- 2.0 D.What type of lens this?

Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    MBD|Exercise EXAMPLE|118 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MBD|Exercise EXAMPLE|94 Videos

Similar Questions

Explore conceptually related problems

Define focal length of a lens

An object is 2m away from a lens. Which forms an erect image 1/4th the size of the object, determine the focal length of the lens.What type of the lens is this?

The image formed by the lens is erect and its length is three times the length of an object. If the focal length of the lens is 15 cm, what kind of lens it is ? Calculate the object and image distance.

If the focal length of a converging lens is 50 cm. What is the power of the Lens ?

A person needs a lens of power -5.5 d for correcting his distant vision. For correcting his near vision he needs a lens of power +1.5 D. What is the focal length of lens required for correcting(i) distant and (ii) near vision?

Is focal length of eye lens fixed? If not, why?

MBD-LIGHT:REFLECTION AND REFRACTION-EXAMPLE
  1. An object 5.0 cm of length is placed at a distance of 20 cm in front o...

    Text Solution

    |

  2. An object of size 7.0 cm is placed at 27 cm in front of a concave mirr...

    Text Solution

    |

  3. Find the focal length of a lens of power- 2.0 D.What type of lens this...

    Text Solution

    |

  4. A doctor has prescribed a corrective lens of power+ 1.5 D.Find the foc...

    Text Solution

    |

  5. Form the image in case an object is moved from infinity to the concave...

    Text Solution

    |

  6. Describe with the help of diagram the natrue, size and position of the...

    Text Solution

    |

  7. What is refraction of light?

    Text Solution

    |

  8. Draw the ray diagrams and find position,nature and size of image forme...

    Text Solution

    |

  9. Draw the ray diagrams and find position,nature and size of image forme...

    Text Solution

    |

  10. Draw the ray diagrams and find position,nature and size of image forme...

    Text Solution

    |

  11. Give the nature, position and size of the image formed by a convex len...

    Text Solution

    |

  12. What is light, Give the nature of light.

    Text Solution

    |

  13. Write the characteristics of light.

    Text Solution

    |

  14. What are the various artificial sources of light ? Give examples

    Text Solution

    |

  15. What is reflector?

    Text Solution

    |

  16. What is reflection of light? State the laws of reflection of light.

    Text Solution

    |

  17. What is the angle of incidence when incident ray falls normal to the m...

    Text Solution

    |

  18. What is the angle of reflection when a ray of light is incident normal...

    Text Solution

    |

  19. A ray of light falling normal to the mirror returns along the same pat...

    Text Solution

    |

  20. Define the terms:Spherical mirror

    Text Solution

    |