Home
Class 12
PHYSICS
An object is placed at a distance of 15c...

An object is placed at a distance of 15cm from a convex lenx of focal length 10cm. On the other side of the lens, a convex mirror is placed at its focus such that the image formed by the combination coincides with the object itself. The focal length of the convex mirror is

A

20 cm

B

10 cm

C

15 cm

D

30 cm

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ONE DIMENSION MOTION

    MOTION|Exercise Exercise - 3 |Section - B Previous Year Problems | JEE MAIN|12 Videos

  • PHOTOELECTRIC EFFECT

    MOTION|Exercise EXERCISE -3 (PREVIOUS YEAR PROBLEMS (JEE MAIN))|12 Videos

Similar Questions

Explore conceptually related problems

An object if placed at a distance of 15cm from a convex lens of focal length 10cm on the other side of the lens, a convex mirror is placed at its foxus such that the image formed by combination coincides with the object itself. Find the focal length of concave mirror.

A point object is placed at a distance of 12 cm from a convex lens of focal length 10 cm. On the other side of the lens, a convex mirror is placed at a distance of 10 cm from the lens such that the image formed by the combination coincides with the object itself. The focal length of the convex mirror is

An object is placed at a distance of 10 cm from a convex lens of focal length 12 cm. Find the position and nature of the image.

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

An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm . Find the position and nature of the image ?

MOTION-OPTICS-Exercise
  1. Shown in the figure here is a convergent lens placed inside a cell fil...

    Text Solution

    |

  2. The radius of curvature of curved surface of a thin plano-convex lens ...

    Text Solution

    |

  3. An object is placed at a distance of 15cm from a convex lenx of focal ...

    Text Solution

    |

  4. A thin equiconvex lens has focal length 10 cm and refractive index 1.5...

    Text Solution

    |

  5. A convex lens of focal length f produces a virtual image n times the s...

    Text Solution

    |

  6. An object is placed at a point distant x from the focus of a convex le...

    Text Solution

    |

  7. A convex forms a real image of a poinnt object placed on its principal...

    Text Solution

    |

  8. Phase difference between two waves having same frequency (v) and same ...

    Text Solution

    |

  9. Widths of two slits in Young's experiment are in the ratio 4 : 1. What...

    Text Solution

    |

  10. Two coherent waves are represented by y(1)=a(1)cos(omega) t and y(2)=a...

    Text Solution

    |

  11. In young's double slit experiment, if wavelength of light changes from...

    Text Solution

    |

  12. If the frequency of the source is doubled in Young's double slit expe...

    Text Solution

    |

  13. If two waves of same frequency and same amplitude superimpose and prod...

    Text Solution

    |

  14. In a Young's double slit experiment, the fringe width is found to be 0...

    Text Solution

    |

  15. In a modified Young's double-slit experiment, a monochromatic uniform ...

    Text Solution

    |

  16. Powers received at focal spot F from A and B are -

    Text Solution

    |

  17. In Young's experiment, if a slab of mica of refractive index mu and th...

    Text Solution

    |

  18. Distance between the sources is one meter. An observer observes minimu...

    Text Solution

    |

  19. If two coherent light waves produce minima of fifth order, the path di...

    Text Solution

    |

  20. Laser light is considered to be coherent because it consists of

    Text Solution

    |