Home
Class 12
PHYSICS
A pin is placed 10cm in front of a conve...

A pin is placed 10cm in front of a convex lens of focal length 20cm, made of a material having refractive index 1.5 . The surface of lens farther away from the pin is silvered and has a radius of curvature 22cm. Determine the position of the final image. Is the image real or virtual?

A

10 cm

B

11 cm

C

12 cm to the right of lens system

D

13 cm

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE -I (LEVEL-II LECTURE SHEET (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)|29 Videos
  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE -I (LEVEL-II LECTURE SHEET (ADVANCED) MORE THAN ONE CORRECT TYPE QUESTIONS)|3 Videos
  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE III LEVEL -II (ADVANCED) INTEGER TYPE QUESTIONS)|4 Videos
  • ELEMENTS OF VECTORS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|10 Videos
  • LAWS OF MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|106 Videos

Similar Questions

Explore conceptually related problems

An object in placed 30cm in front of a concave lens that is made of a glass of refractive index 1.5 and has equal radii of curvature of its two surfaces, each 30 cm. The surface of the lens farther away from the object is silvered. Find the nature and position of the final image.

An object is placed at a distance 24 cm in front of a convex lens of focal length 8 cm. Calculate the distance of the image from the lens.

A glass slab of thickness 2cm and refractive index 2 is placed in contact with a biconvex lens of focal length 20cm. The refractive index of the material of the lens 1.5 . The far side of the lens is silvered. Where should an object be placed in front of the slab so that it images on to itself?

An object of height 2 cm is placed in front of a convex lens of focal length 20 cm at a distance of 15 cm from it. Find the position and magnification of the image.

An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find : the position of the image

Focal length of a convex lense in air is 20cm. and of concave lens 40cm. Find the position of final image.

An object 25 cm high is placed in front of a convex lens of focal length 30 cm . If the height of image formed is 50 cm , find the distance between the object and the image (real and virtual)?

A point object is placed 30 cm in front of an equiconvex lens of radius of curvature 15 cm and made of glass of refractive index (3)/(2) . On placing a convex mirror of radius of curvature 15 cm behind the lens on image side, the final image is found to coincide with the object. The possible distance between convex lens and convex mirror is

An object is placed at a distance of 10cm to the left on the axis of convex lens A of focal length 20cm. A second convex lens of focal length 10cm is placed coaxially to the right of the lens A at a distance of 5cm from A. Find the position of the final image and its magnification. Trace the path of the rays.

A convex lens has a focal length of 20 cm. It is used to form an image of an object placed 15 cm from lens. The image is

AAKASH SERIES-GEOMETRICAL OPTICS-ADDITIONAL PRACTICE EXERCISE -I (LEVEL-I(MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)
  1. A glass slab of thickness 4 cm contains the same number of waves as 5 ...

    Text Solution

    |

  2. The wavelength of light in vacuum is 5000Å when it travels normally th...

    Text Solution

    |

  3. A glass plate has a thicknes t and refractive index mu. The angle of i...

    Text Solution

    |

  4. Wave length of light in denser mediumis 4000Å, it is grazing into a ra...

    Text Solution

    |

  5. A ray of light travels from an optically denser to rarer medium. The c...

    Text Solution

    |

  6. A point source of light is placed at the bottom of a water lake. If th...

    Text Solution

    |

  7. The refractive index of the material ofa double convex lens is 1.5 and...

    Text Solution

    |

  8. A biconvex thin lens is prepared from glass of refractive index mu(2)=...

    Text Solution

    |

  9. A diverging meniscus lens of radii of curvatures 25 cm and 50 cm has a...

    Text Solution

    |

  10. A thin liquid convex lens is formed in glass. Refractive index of liqu...

    Text Solution

    |

  11. The focal lengths of a lens are in the ratio 8:3 when it is immersed i...

    Text Solution

    |

  12. A double convex lens of focal length 30 cm is made of glass. When it ...

    Text Solution

    |

  13. A pin is placed 10cm in front of a convex lens of focal length 20cm, m...

    Text Solution

    |

  14. A convex lens is in contact with a concave lens. The magnitude of the...

    Text Solution

    |

  15. A double convex lens is made of glass which has refractive inded 1.55 ...

    Text Solution

    |

  16. The refractive index of a lens material is 1.5 and focal length f. Du...

    Text Solution

    |

  17. A plano-convex lens of refractive index 1.5 and radius of curvature 30...

    Text Solution

    |

  18. A ray of light is incident at 50^(@) on the middle of one of two mirr...

    Text Solution

    |

  19. A 2.0 cm high object is placed on the principal axis of a concave mirr...

    Text Solution

    |

  20. A concave mirror forms a real image three times larger than the object...

    Text Solution

    |