Home
Class 12
PHYSICS
A luminous object is placed at a distanc...

A luminous object is placed at a distance of 30 cm. from the convex lens of focal length 20 cm. On the other side of the lens, at what distance from the lens, a convex mirror of radius of curvature 10 cm. be placed in order to have an upright image of the object coincident with it ?

A

50 cm

B

30 cm

C

12 cm

D

60 cm

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - D)|16 Videos
  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - B)|35 Videos
  • PHYSICAL WORLD

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (Section-B)|4 Videos
  • SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )

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

Similar Questions

Explore conceptually related problems

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

An object is placed at a distance 20 cm from the pole of a convex mirror of focal length 20 cm. The image is produced at

A point object O is placed at a distance of 20 cm from a convex lens of focal length 10 cm as shown in the figure. At what distance x from the lens should a convex mirror of focal length 60 cm, be placed so that final image coincide with the object?

A point object is placed at distance of 30 cm in front of a convex mirror of Focal length 30 cm. The image will form at

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.

An object is put at a distance of 5cm from the first focus of a convex lens of focal length 10cm. If a real image is formed, its distance from the lens will be

A point object O is placed at a distance of 20 cm from a convex lens of focal length 10 cm as shown in figure. At what distance x from the lens should a concave mirror of focal length 60 cm, placed so that final image coincides with the object ?

An object is kept at a distance of 15 cm from a convex lens of focal length 10 cm. Calculate the image distance and state the characteristics of the image formed.

In displacement method distance of object from convex lens of focal length 20 cm in one position 60 cm. Then

AAKASH INSTITUTE ENGLISH-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - C)
  1. A convex lens of focal length 80 cm and a concave lens of focal length...

    Text Solution

    |

  2. The focal lengths of a converging lens measured for violet, green and ...

    Text Solution

    |

  3. A luminous object is placed at a distance of 30 cm. from the convex le...

    Text Solution

    |

  4. A plano convex lens is made of material of refactive index 1.6 The rad...

    Text Solution

    |

  5. For a plane convex lens (mu = 1.5) has radius of curvature 10 cm. It i...

    Text Solution

    |

  6. A bubble in glass slab (mu = 1.5) when viewed from one side appears at...

    Text Solution

    |

  7. A body is locatyed on a wall. Its image of equal size is to be obtaine...

    Text Solution

    |

  8. A convex lens is dipped in a liquid whose refractive index is equal t...

    Text Solution

    |

  9. An equiconvex lens in cut into two halves along (i) XOX' f,f',f'' be t...

    Text Solution

    |

  10. Which of the following is incorrect?

    Text Solution

    |

  11. A double concave thin lens made out of glass (mu=1.5) have radii of cu...

    Text Solution

    |

  12. A convex lens forms a real image 16 mm long on a screen. If the lens i...

    Text Solution

    |

  13. A point object is moving with speed u(0) at a position somewhere betwe...

    Text Solution

    |

  14. The minimum magnifying power of an astronomial telescope is M. If the ...

    Text Solution

    |

  15. An object is placed in front of two convex lenses one by one at a dist...

    Text Solution

    |

  16. If R(1)andR(2) are the radii of curvature of the spherical surfaces of...

    Text Solution

    |

  17. The focal length of a thin lens in vacuum is f. If the material of the...

    Text Solution

    |

  18. An astronomical telescope of ten-fold angular magnification has a leng...

    Text Solution

    |

  19. Ray optics is valid, when characteristic dimensions are

    Text Solution

    |

  20. The blue colour of the sky is due to

    Text Solution

    |