Home
Class 12
PHYSICS
A point object O moves from the principa...

A point object O moves from the principal axis of a converging lens in a direction OP. I is the image of O, will move initially in the direction

Text Solution

Verified by Experts

The correct Answer is:
C

(i) `v_(Ix) = m^(2)v_(0x)` (same direction)
(ii) `because` m = -ve , `m=(v)/(u)`,
(v=-ve, u =+ve) then `v_(Iy)` = -ve
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE-2|44 Videos

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE-3|12 Videos

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE - 05 (B) (ASSERTION & REASON )|9 Videos

  • CURRENT ELECTRICITY

    ALLEN |Exercise EX.II|66 Videos

  • GRAVITATION

    ALLEN |Exercise EXERCISE 4|9 Videos

Similar Questions

Explore conceptually related problems

Two point objects are placed on principal axis of a thin converging lens. One is 20cm from the lens and other is on the other side of lens at a distance of 40 cm from the lens. The images of both objects coincide. The magnitude of focal length of lens is :-

When acceleration of object in motion is constant it will move in same direction.

A point object O can move along vertical line AB as shown in figure . When image of the object is first visible to D then it is released at t=0 from rest from A . The time for which image is visible to D is :

A point object is placed on the axis in front of a convex lens of focal length 30 cm. The distance of the object from the lens is 45 cm. If the lens is moved away from object by 1 mm and also the object is moved apart from the line joining the object and optical centre by 1 mm the displacement of the image has magnitude-

An object O is kept infront of a converging lens of focal length 30 cm behind which there is a plane mirror at 15 cm from the lens.

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 ?

A particle P starts from the point z_0=1+2i , where i=sqrt(-1) . It moves first horizontally away from origin by 5 units and then vertically away from origin by 3 units to reach a point z_1dot From z_1 the particle moves sqrt(2) units in the direction of the vector hat i+ hat j and then it moves through an angle pi/2 in anticlockwise direction on a circle with centre at origin, to reach a point z_2dot The point z_2 is given by 6+7i (b) -7+6i 7+6i (d) -6+7i

A ball of superconducting material is dipped in liquid nitrogen and placed near a bar magnet. (i) In which direction will it move ? (ii) What will be the direction of it's magnetic moment ?

In the figure shown L is converging lens of focal length 10 cm and M is a concave mirror of radius of curvature 20 cm . A point object O is placed in front of the lens at a distance 15 cm . AB and CD are optical axes of the lens mirror respectively. Find the coordinates of the final image formed by this system taking O as origin. The distance between CD & AB is 1mm.

A point source S is placed at distance of 15 cm from a converging lens of focal length 10 cm . Where should a (i) concave mirror (ii) convex mirror of focal length 12 cm be placed so that real image is formed on object itself.

ALLEN -GEOMETRICAL OPTICS-EXERCISE- 01
  1. A paraxial beam is incident on a glass (n=1.5) hemisphere of radius R=...

    Text Solution

    |

  2. A concave spherical surface of radius of curvature 10 cm separates two...

    Text Solution

    |

  3. A double convex lens, lens made of a material of refractive index mu(1...

    Text Solution

    |

  4. Optic axis of a thin equiconvex lens is the x-axis. The co-rodinates o...

    Text Solution

    |

  5. A converging lens of focal length 20 cm and diameter 5 cm is cut along...

    Text Solution

    |

  6. Look at the ray diagram shown ,what will be th focal length of th e1^(...

    Text Solution

    |

  7. A diverging lens of focal length 10cm is placed 10cm in front of a pla...

    Text Solution

    |

  8. A point object O moves from the principal axis of a converging lens in...

    Text Solution

    |

  9. A point object O is placed at a distance of 20 cm from a convex lens o...

    Text Solution

    |

  10. A point source of light is placed on the principal axis between F and ...

    Text Solution

    |

  11. A man washign to get a picture of a Zebra photographed a white donkey ...

    Text Solution

    |

  12. A lens if placed between a source of light and a wall. It forms images...

    Text Solution

    |

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

    Text Solution

    |

  14. A beam of light consisting of red, green and blue colours is incident ...

    Text Solution

    |

  15. A ray of light is incident normally on the first refracting face of th...

    Text Solution

    |

  16. A horizontal ray of light passes through a prism of index 1.50 and ape...

    Text Solution

    |

  17. The curve of angle of incidence versus angle of deviaton wshown has be...

    Text Solution

    |

  18. A beam of monochromatic light is incident at i= 50^(@) on one face of ...

    Text Solution

    |

  19. A parallel of white light falls on a concave lens , Image of blue , re...

    Text Solution

    |

  20. Which of the following quantities related to a lens does not depend on...

    Text Solution

    |