Home
Class 12
PHYSICS
The image of an object, formed by a plan...

The image of an object, formed by a plano-convex lens at a distance of 8 m behind the lens, is real is one-third the size of the object. The wavelength of light inside the lens is 2/3 times the wavelength in free space. The radius of the curved surface of the lens is

A

1m

B

2m

C

3m

D

6m

Text Solution

Verified by Experts

The correct Answer is:
C

`mu=(3)/(2),V=8,m=(1)/(3)`
`1+m=(V)/(f)=(V)/(2R)`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    FIITJEE|Exercise PHYSICS|747 Videos
  • SIMPLE HARMONIC MOTION

    FIITJEE|Exercise Assignment Problems (Objective) (Level-II)|20 Videos
  • WORK, ENERGY AND POWER

    FIITJEE|Exercise COMPREHENSIONS ( Comprehension-II)|5 Videos

Similar Questions

Explore conceptually related problems

The image of an object, forme by a plano-convex lens at a distance of 8m behind the lens, is real and is one-third the size of the object. The wavelength of light inside the lens is (2)/(3) times the wavelength is free space. The radius of the curved surface of the lens is

The image of an object placed in air formed by a convex refracting surface is at a distance of 10 m behind the surface. The image is real and is at (2^(rd))/(3) of the distance of the object from the surface. The wavelength of light inside the surface is (2)/(3) times the wavelength in air. The radius of the curved surface is (x)/(13)m . The value of 'x' is _________.

A real image of a distant object is formed by a plano-convex lens of its principal axis. Spherical aberration

A convex lens of focal length f produces a virtual image n times the size of the object. Then the distance of the object from the lens is

An equi-convex lens in air forms real image at distance 10cm from lens for real object. If image distance is 2/3rd of object distance. Wavelength of light in medium of lens is 2/3rd of wavelength in vacuum. Find radius of curvature of lens.

A convex lens of focal length f produces a real image 3 times as that of size of the object, the distance between the object and the lens is

A convex lens produces a real image m times the size of the object. What will be the distance of the object from the lens ?

FIITJEE-TEST PAPERS-PHYSICS
  1. A plane wave front of light is incident on a plane mirror. Intensity i...

    Text Solution

    |

  2. An X-ray tube has three main controls. (i). The target material (its...

    Text Solution

    |

  3. The image of an object, formed by a plano-convex lens at a distance of...

    Text Solution

    |

  4. A long straight wire, carrying current I, is bent at its midpoint to f...

    Text Solution

    |

  5. A steel wire of length 60 cm and area of cross section 10^(-6)m^(2) is...

    Text Solution

    |

  6. A cubical frame is made by connecting 12 identical uniform conducting ...

    Text Solution

    |

  7. A body of mass 1kg is suspended from a weightless spring having force ...

    Text Solution

    |

  8. The figure shows a system of two concentric spheres of radii r1 and r2...

    Text Solution

    |

  9. Two spherical bodies of mass M and 5M & radii R & 2R respectively are ...

    Text Solution

    |

  10. A tunnel is dug along a chord of the earth at a perpendicular distance...

    Text Solution

    |

  11. Two longitudinal waves propagating in the X and Y directions superimpo...

    Text Solution

    |

  12. the total flux of electric lines of forces of a charge q placed at the...

    Text Solution

    |

  13. As situation shown in figure the maximum value of rate of energy store...

    Text Solution

    |

  14. If vector P, Q and R have magnitude 5,12,and 13 units and vec(P)+vec(Q...

    Text Solution

    |

  15. A particle is projected from gound At a height of 0.4 m from the groun...

    Text Solution

    |

  16. Forces acting on a particle moving in a straight line varies with the ...

    Text Solution

    |

  17. The spring balance A reads 2 kg with a block m suspended from it. A ba...

    Text Solution

    |

  18. A massless Rod AB is hinged at point A. At point P, it is connected by...

    Text Solution

    |

  19. A block of mass is connected to an ideal spring of stiffness K(1) on l...

    Text Solution

    |

  20. Two mass m(1)&m(2) are initially placed at rest inside two smooth tunn...

    Text Solution

    |