Home
Class 12
PHYSICS
Two identical equiconvex lenses made of ...

Two identical equiconvex lenses made of glass of reflected index 1.5 placed in contact has power `P`. When a liquid of refractive index `mu` is filled in the gap between the convex lenses, the power becomes of initial value `(P//3)`. The value of `mu` is`K/3`. Find the value of `K`

Text Solution

Verified by Experts

The correct Answer is:
5
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

When a lens of power P (in air) made of material of refractive index mu is immersed in liquid of refractive index mu_(0) Then the power of lens is:

Two equi convex lenses each of focal lengths 20 cm and refractive index 1.5 are placed in & contact and space between them is filled with water of refractive index 4/3 . The combination works as

A thin convex lens made of glass of refractive index 3//2 has a power of 5 D. When it is immersed in a liquid of refractive index mu , it behaves like a divergent lens of focal length 1 m. Calculate the refractive index of the liquid.

A double convex lens of + 5 D is made of glass of refractive index 1.5 with both faces of equal radii of curvature. Find the value of curvature.

Two identical equiconvex lenses of refractive index 3//2 and focal length 16 cm are kept in contact. The space between the lenses is filled with water of refractive index 4//3 . What is the focal length of the combination ?

Two equi-convex lenses of focal length 30cm and 70cm, made of material of refractive index =1.5, are held in contact coaxially by a rubber band round their edges.A liquidof refractive index 1.3 is introduced in the space between the lenses filling it completely. Find the position of the image of a luminous point object placed on teh axis of the combination lens at a distance of 90cm from it.

A convex lens of refractive index 3/2 has a power of 2.5^(@) . If it is placed in a liqud of refractive index 2,the new power of the lens is

A thin made of glass of refractive index 1.5 has a front surface +11 D power and back surface -6D . If this lens is submerged in a liquid of refractive index 1.6 , the resulting power of the lens is

The focal length of a glass convex lens of refractive index 1.5 is 20 cm. What is the focal power of the lens when immersed in a liquid of refractive index of 1.25 ?

FIITJEE-TEST PAPERS-PHYSICS
  1. The small particle of mass m is given an initial high velocity in the ...

    Text Solution

    |

  2. The circuit shows a resistance R=0.01Omega and inductance L=3 mH conne...

    Text Solution

    |

  3. Two identical equiconvex lenses made of glass of reflected index 1.5 p...

    Text Solution

    |

  4. Two capacitors C(1)=C(2)=1/(pi^(2))xx10^(-2)F and inductor L=2xx10^(...

    Text Solution

    |

  5. Two particles A and B located at points (0,-10sqrt(3)) and (0,0) in xy...

    Text Solution

    |

  6. Two ideal solenoids of same dimensions. One is air cored with 600 turn...

    Text Solution

    |

  7. Water flowing along an open channel drives an undershot waterwheel of ...

    Text Solution

    |

  8. Two discs A and B each of mass 2kg and radius 0.5m are rigidly fixed t...

    Text Solution

    |

  9. A uniform ball of radius R rolls without slipping between the rails su...

    Text Solution

    |

  10. A worker wishes to pile up sand on to a circular area of radius R. No ...

    Text Solution

    |

  11. A solid spherical ball is released from rest on an incline of inclinat...

    Text Solution

    |

  12. W(1),W(2) and W(3) are the different sizes of windows 1, 2, and 3 resp...

    Text Solution

    |

  13. The potential energy function of a particle is given by U(r)=A/(2r^(2)...

    Text Solution

    |

  14. Velocity of a particle of mass 2 kg change from vecv(1) =-2hati-2hatjm...

    Text Solution

    |

  15. Match the following: Distance of centre of mass (in m) of the bod...

    Text Solution

    |

  16. Match the following: Moment of inertia of body (in kg-m^(2)) (sho...

    Text Solution

    |

  17. Match the following: ("Gravitational potential energy" (U=0, "at ...

    Text Solution

    |

  18. A block of mass m=15g is suspended in an elevator with the help of thr...

    Text Solution

    |

  19. A block of mass m=15g is suspended in an elevator with the help of thr...

    Text Solution

    |

  20. A block of mass m=15g is suspended in an elevator with the help of thr...

    Text Solution

    |