Home
Class 12
PHYSICS
An object is placed at a distance of f//...

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

A

At one of the foci, virtual and double its size

B

At 3f/2, real and inverted

C

At 2f, virtual and erect

D

At f, real and inverted

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - B)|30 Videos
  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - C)|76 Videos
  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE|Exercise EXERCISE|47 Videos
  • PHYSICAL WORLD

    AAKASH INSTITUTE|Exercise ASSIGNMENT (Section-B)|5 Videos
  • SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )

    AAKASH INSTITUTE|Exercise Assignment SECTION - D (Assertion & reason type Question)|10 Videos

Similar Questions

Explore conceptually related problems

A point object is placed at a distance of 15 cm from a convex lens. The image is formed on the other side of lens at a distance 30 cm from lens. When a concave lens is placed in contact with convex lens, image is shifted away further by 30 cm. calculate the focal lengths of the two lenses.

A point object is placed at a distance of 15 cm from a convex lens. The image is formed on the other side at a distance of 30 cm from the lens. When a concave lens is placed in contact with the convex lens, the image shifts away further by 30 cm. Calculate the focal lengths of the two lenses.

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

When an object is placed at a distance of 36 cm from a convex lens, an image of the same size as the object is formed. What will be the nature of image formed when the object is formed. What will be the nature of image formed when the object is placed at a distance of: a) 10 cm from the lens? b) 20 cm from the lens?

A 1 cm high object is placed at a distance of 2f from a convex lens. What is the height of the image formed?

An object is placed at a distance of 12 cm from a convex lens. A convex mirror of focal length 15 cm is placed on other side of lens at 8 cm as shown in the figure. Image of object coincides with the object. When the convex mirror is removed, a real and inverted image is formed at a position. The distance of the image from the object will be (cm) .

An object 2 cm high is placed at a distance 2 f from a convex lens. What is the height of the image formed ?

An object is situated at a distance of f//2 from a convex lens of focal length f Distance of image will be-

An object is placed at a distance of 20 cm from a convex lens of focal length 10 cm . The image is formed on the other side of the lens at a distance

AAKASH INSTITUTE-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - A)
  1. Which of the following phenomenon light forms a rainbow?

    Text Solution

    |

  2. Which of the following is used in optical fibres?

    Text Solution

    |

  3. An object is placed at a distance of f//2 from a convex lens. The imag...

    Text Solution

    |

  4. The least distance between a point object and its real image formed by...

    Text Solution

    |

  5. The plane faces of two identical planoconvex lenses each having focal ...

    Text Solution

    |

  6. Two thin lenses of focal lengths 20 cm and -20 cm are placed in contac...

    Text Solution

    |

  7. If in a planoconvex lens, the radius of curvature of the convex surfac...

    Text Solution

    |

  8. A glass concave lens is placed in a liquid in which it behaves like a ...

    Text Solution

    |

  9. The diameter of a plano convex lens is 6 cm and thickness at the centr...

    Text Solution

    |

  10. Two plano-convex lenses of equal focal lengths are arranged as shown ...

    Text Solution

    |

  11. When an object is at a distance u(1) and u(2) from the optical centre ...

    Text Solution

    |

  12. A convex mirror of focal length f produced an image (1//n)^(th) of the...

    Text Solution

    |

  13. A thin convergent glass lens (mug=1.5) has a power of +5.0D. When this...

    Text Solution

    |

  14. In case of displacement method of lenses, the product of magnification...

    Text Solution

    |

  15. In the displacement method , a convex lens is placed in between an obj...

    Text Solution

    |

  16. The focal length of a planoconvex glass lens is 20 cm (mu(g)=1.5). The...

    Text Solution

    |

  17. What is the cause of dispersion of white light through a glass prism ...

    Text Solution

    |

  18. The angle at which a ray of light be incident on one face of an equila...

    Text Solution

    |

  19. A prism of refractive index sqrt(2) has a prism angle of 60^(@). At wh...

    Text Solution

    |

  20. A glass prism of refractive index 1.5 is immersed in water (refractive...

    Text Solution

    |