Home
Class 12
PHYSICS
An under-water swimmer cannot see very c...

An under-water swimmer cannot see very clearly even in absolutely clear water because of

A

absorption of light in water

B

scattering of light in water

C

reduction of speed of light in water

D

change in the focal length of eye lens.

Text Solution

Verified by Experts

The correct Answer is:
D
The eye lens is surrounded by a different medium than air. This will change the focal length of the eye lens. The eye cannot accommodate all images as it would do in air.
Promotional Banner

Topper's Solved these Questions

  • OPTICS

    MTG GUIDE|Exercise Check your NEET vitals|25 Videos

  • OPTICS

    MTG GUIDE|Exercise AIPMT/NEET|55 Videos

  • OPTICS

    MTG GUIDE|Exercise AIPMT/NEET|55 Videos

  • MAGNETIC EFFECTS OF CURRENT AND MAGNETISM

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|48 Videos

Similar Questions

Explore conceptually related problems

Fish are able to see under water because

We can see the Sun even when it is little below the horizon because of

Water cannot act as :

The heartwood cannot conduct water because of

An under water swimmer is at a depth of 12 m below the surface of water. A bird is at a height of 18 m from the surface of water, directly above his eyes. For the swimmer the bird appears to be at a distance from the surface of water equal to (Refractive Index of water is 4/3)

An under water swimmer looks upward at an unobstructed overcast sky. The vertex angle does the sky appear to subtend at the eye of swimmer is (critical angle for water air interface is C)

MTG GUIDE-OPTICS-Topicwise Practice Questions
  1. When sunlight is scattered by atmospheric atoms and molecules, the amo...

    Text Solution

    |

  2. When sun light is scatterred by minute particles of atmosphere, then t...

    Text Solution

    |

  3. An under-water swimmer cannot see very clearly even in absolutely clea...

    Text Solution

    |

  4. If a person can sees clearly at a distance of 100 cm, then find the po...

    Text Solution

    |

  5. When objects at different distances are seen by the eye, which of the ...

    Text Solution

    |

  6. A student's near point is 0.5 m and far point is 3m . What are the po...

    Text Solution

    |

  7. The least distance of distinct vision of a person is 75 cm. The focal ...

    Text Solution

    |

  8. The image formed by an objective of a compound microscope is

    Text Solution

    |

  9. The magnifying power of a telescope can be increased

    Text Solution

    |

  10. v34

    Text Solution

    |

  11. The objective of a compound microscope is essentially

    Text Solution

    |

  12. The length of a telescope is 36 cm . The focal lengths of its lenses c...

    Text Solution

    |

  13. The magnifying power of an astronomical telescope is 8 and the distanc...

    Text Solution

    |

  14. In a laboratory four convex lenses L(1), L(2), L(3) and L(4) of focal ...

    Text Solution

    |

  15. A telescope has an objective lens of focal length 200cm and an eye pie...

    Text Solution

    |

  16. Least distance of distinct vision is 25 cm . Magnifying power of simpl...

    Text Solution

    |

  17. Focal length of objective and eye piece of telescope are 200 cm and 4 ...

    Text Solution

    |

  18. A compound microscope has an eye piece of focal length 10 cm and an ob...

    Text Solution

    |

  19. The focal lengths of the objective and of the eye-piece of a compound ...

    Text Solution

    |

  20. A square card of side length 1 mm is being seen through a magnifying l...

    Text Solution

    |