Home
Class 12
PHYSICS
If a substance is behaving as convex len...

If a substance is behaving as convex lens in air and concave
lens in water then which one of the following is its refractive
index?

A

Smaller than air

B

Greater than both air and water

C

Greater than air but less than water

D

Almost equal to water

Text Solution

Verified by Experts

The correct Answer is:
C
As `(n)_(liquid) gt (n)_("lens")`
Lens property changes.
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    ERRORLESS|Exercise NCERT BASED QUESTIONS ( Prism Theory & Dispersion of Light )|46 Videos

  • RAY OPTICS

    ERRORLESS|Exercise NCERT BASED QUESTIONS ( Human Eye and Lens Camera )|15 Videos

  • RAY OPTICS

    ERRORLESS|Exercise NCERT BASED QUESTIONS ( Total internal reflection )|26 Videos

  • MAGNETISM

    ERRORLESS|Exercise Assertion and Reason|22 Videos

  • WAVE OPTICS AND ELECTROMAGNETIC THEORY

    ERRORLESS|Exercise ASSERTION & REASON |27 Videos

Similar Questions

Explore conceptually related problems

When does a convex lens behave as a concave lens ?

When does a convex lens behave as a concave lens ?

A lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is (refractive index of water =1.33 )

A lens behaves as a converging lens in air and as a diverging lens in water. If refractive index of water is 1.33 , the refractive index of the material of the lens will be

Concave lens and convex lens

A lense behaves as a converging lens is air and diverging lens in water. The refractive index of the lens material is -

Concave lens and Convex lens

ERRORLESS-RAY OPTICS-NCERT BASED QUESTIONS ( Refraction at Curved surface )
  1. A convex lens of crown glass (n =1.525) will behave as a divergent len...

    Text Solution

    |

  2. A lens behaves as a converging lens in air and a diverging lens in wat...

    Text Solution

    |

  3. If a substance is behaving as convex lens in air and concave lens in...

    Text Solution

    |

  4. A double convex lens of refractive index m(1) is immersed in a liquid ...

    Text Solution

    |

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

    Text Solution

    |

  6. The divergent lens in m linear magnification produced by the lens is

    Text Solution

    |

  7. A double convex thin lens made of glass (refractive index mu = 1.5) h...

    Text Solution

    |

  8. A plano-convex lens is made of refractive index 1.6. The radius of cur...

    Text Solution

    |

  9. The chromatic aberration in lenses is due to

    Text Solution

    |

  10. The focal length for violet, green and red light rays are fV,fG and fR...

    Text Solution

    |

  11. The radius of curvature of the curved surface of a plano-convex lens i...

    Text Solution

    |

  12. The radius of curvature of the curved surface of a plano-convex lens i...

    Text Solution

    |

  13. A convex glass lens (mu(g) = 1.5) has a focal length of 8 cm when plac...

    Text Solution

    |

  14. In figure, an air lens of radius of curvature of each surface equal to...

    Text Solution

    |

  15. Two plano-concave lenses (1 and 2) of glass of refractive index 1.5 ha...

    Text Solution

    |

  16. Focal length of a convex lens of refractive index 1.5 is 2 cm. Focal l...

    Text Solution

    |

  17. A biconvex lens has a radius of curvature of magnitude 20cm. Which one...

    Text Solution

    |

  18. Let f(v) and f(r) are the focal lengths of a convex lens for violet an...

    Text Solution

    |

  19. A thin equi-convex lens is made of glass of refractive index 1.5 and i...

    Text Solution

    |

  20. A thin glass (refractive index 1.5) lens has optical power of -5D in a...

    Text Solution

    |