Home
Class 12
PHYSICS
The foal length of a glass convex lens i...

The foal length of a glass convex lens in air is 15 cm.Calculate its focal lenth,when is is totally immersed in wate.Given `a^mu_w=4//3` and `a^mu_g=1.5`.

Promotional Banner

Topper's Solved these Questions

  • REFRACTION OF LIGHT

    MODERN PUBLICATION|Exercise EXERCISE|168 Videos

  • REFLECTION OF LIGHT

    MODERN PUBLICATION|Exercise EXERCISE|57 Videos

  • SEMICONDUCTOR DEVICES

    MODERN PUBLICATION|Exercise EXERCISE|174 Videos

Similar Questions

Explore conceptually related problems

A convex lens of refractive index 1.5 has a focal length of 18 cm in air.Calculate the change in focal length,when it is immersed in water of refractive index 4//3 .

The focal length of a concavo - convex lens of radii of curvature 5 cm and 10 cm is 20 cm.What will be its focal length in water (mu=4//3) ?

What is the focal length of a convex lens (mu=1*5) with radii of curvature R?

Focal length of a convex lens of refractive index 1.5 is 2 cm.Focal length of lens,when immersed in a liquid of refractive index of 1.25 will be

A glass convex lens has a power of +10 D.When ths lens is totally immersed in a liquid,it acts as concave lens of focal length 50cm.Calculate the refractive index of the liquid.Given ^a mu_g=1.5 .

The radii of curvature of double convex lens are 30 cm and 60 cm and its refractive index is 1.5 .Calculate its focal length.

MODERN PUBLICATION-REFRACTION OF LIGHT-EXERCISE
  1. The radius of curvature of each face of a biconcave lens made of glass...

    Text Solution

    |

  2. The radii of curvature of the two surface of a convexo concave ens ae1...

    Text Solution

    |

  3. The foal length of a glass convex lens in air is 15 cm.Calculate its f...

    Text Solution

    |

  4. A glass (mu=1.5) convex lens of focl length 40 cm is placed in water (...

    Text Solution

    |

  5. The focal length of a concavo - convex lens of radii of curvature 5 cm...

    Text Solution

    |

  6. If the refractive index from air to glass is 3//2 adn that from air to...

    Text Solution

    |

  7. A convex lens of refractive index 1.5 has a focal length of 18 cm in a...

    Text Solution

    |

  8. The radii of curvature of a convex lens are 20 cm and 30 cm nd the re...

    Text Solution

    |

  9. A convex lens of refractive index 1.5 is immersed in a liquid of refra...

    Text Solution

    |

  10. Explain what happens ,when a convex lens of refractive index 1.2 is im...

    Text Solution

    |

  11. A convex lens of refrative index 1.5 is immersed in a liquid of refrac...

    Text Solution

    |

  12. An object is placed at 0.06 m from a convex lens of focal length 0.10 ...

    Text Solution

    |

  13. An object is kept 0.2 m from a conex lens of focal length 0.15 m .Fin...

    Text Solution

    |

  14. A 5.0 cm long needle is placed vertically at a distance 20 cm in front...

    Text Solution

    |

  15. A convex lens of foal length 30 cm and a concave lens of focal length ...

    Text Solution

    |

  16. A ocnverging bem of light forms of a sharp image on a screen. lens is...

    Text Solution

    |

  17. An object is placed at a distance of 75 cm from a screen .Where should...

    Text Solution

    |

  18. The image of needle placed 45 cm from a lens is formed on a screen pl...

    Text Solution

    |

  19. If the distance between the screen and object is 50 cm and the displac...

    Text Solution

    |

  20. A convex lens of focal lenght 20 cm is placed coaxially wih a convex m...

    Text Solution

    |