Home
Class 10
PHYSICS
To determine the approximate focal lengt...

To determine the approximate focal length of the given convex lens by focussing a distant objects you try to focus the image of the object on a scree. The image you obtain an the screen is always.

A

errect and laterally inverted

B

erect and diminished

C

inverted and diminished

D

virtual, inverted and diminished

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • REFLECTION AND REFRACTION

    MODERN PUBLICATION|Exercise EXAMPLE|138 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MODERN PUBLICATION|Exercise EXERCISE|265 Videos

  • SOURCES OF ENERGY

    MODERN PUBLICATION|Exercise EXAMPLE|92 Videos

Similar Questions

Explore conceptually related problems

A convex lens forms a virtual image of an object. What is the position of the object?

The focal length of a convex lens is 30 cm and the size of image is quarter of the object.Them,the object distance is

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

By giving sign-conventions, derive the lens formula relating object distance, image distance and focal length for a thin convex lens. Draw a ray diagram to show the formation of image of an object placed between optical centre and focus of a convex lens.

Give the nature, position and size of the image formed by a convex lens when the object lies at 2 F

At what distance should be placed from a convex lens of focal length 15 cm to obtain an image three times the size of the object?

The image of an object formed by a convex mirror is always…..

An object is placed at a distance of f//2 from a convex lens .The image will be

MODERN PUBLICATION-REFLECTION AND REFRACTION-EXAMPLE
  1. To determine the approximate focal length of the given convex lens by ...

    Text Solution

    |

  2. A concave mirror of focal length 20 cm forms a real image at a distanc...

    Text Solution

    |

  3. A convex mirror used on an automobile has a radius of curvature of 3 m...

    Text Solution

    |

  4. An object 1 cm high is place on the axis and 15 cm from a concave mirr...

    Text Solution

    |

  5. The image formed by a concave mirror is half in size of the object. If...

    Text Solution

    |

  6. An object 5 cm high is placed at a distance of 10 cvm from a convex mi...

    Text Solution

    |

  7. When an object is placed at a distance of 60 cm from a convex spherica...

    Text Solution

    |

  8. Find the position of an object which when placed in front of a concave...

    Text Solution

    |

  9. An object is placed 10 cm from a concave mirror of radius of curvature...

    Text Solution

    |

  10. An object is placed 15 cm from a convex mirror of radius of curvature ...

    Text Solution

    |

  11. A 4.5 cm needle is placed 12 cm away from a convex mirror of focal len...

    Text Solution

    |

  12. What is the speed of light?

    Text Solution

    |

  13. If refractive index of glass w.r.t. air is 1.55, then what is the refr...

    Text Solution

    |

  14. The refractive index of water is 4/3 and flint glass is 1.65. What is ...

    Text Solution

    |

  15. A ray of light passes from to air to glass at an angle of incidence of...

    Text Solution

    |

  16. Monochromatic light of wavelength 589 nm is incident from air on a wat...

    Text Solution

    |

  17. The refractive index of diamond is 2.42 and that of glass is 1.5. find...

    Text Solution

    |

  18. A ray of light of frequency of 5 xx 10^(14)Hz is passed through a liqu...

    Text Solution

    |

  19. Velocity of light in a medium is 1.5xx10^8 ms^-1. Find the refractive ...

    Text Solution

    |

  20. The refractive index of diamond is:

    Text Solution

    |

  21. A ray of light passes from air to glass. The glass of incidence is 45^...

    Text Solution

    |