Home
Class 12
PHYSICS
Which of the following is used in optica...

Which of the following is used in optical fibres?

A

Total internal reflection

B

Diffraction

C

Refraction

D

Scattering

Text Solution

Verified by Experts

The correct Answer is:
A, C
The working of optical fibres is based on total internal reflection.
Promotional Banner

Topper's Solved these Questions

  • OPTICS

    FULL MARKS|Exercise ADDITIONAL QUESITON - II ADDITIONAL PROBLEMS:|11 Videos

  • OPTICS

    FULL MARKS|Exercise TEXTUAL EVALUATION SOLVED V.NUMERICAL PROBLEMS|10 Videos

  • MAGNETISM AND MAGNETIC EFFECTS OF ELECTRIC CURRENT

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED - NUMERICAL PROBLEMS :|4 Videos

  • RECENT DEVELOPMENTS IN PHYSICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (Short Answer Question)|6 Videos

Similar Questions

Explore conceptually related problems

Which of the following is used as food?

Which of the following is used in fumigation.

FULL MARKS-OPTICS-ADDITIONAL QUESITON -( MULTIPLE CHOICE QUESTIONS )
  1. Two beams of red and violet colours are made to pass separately throu...

    Text Solution

    |

  2. To get three images of a single obiect, one should have two plane mirr...

    Text Solution

    |

  3. Which of the following is used in optical fibres?

    Text Solution

    |

  4. Two lenses of power - 15 D and + 5 D are in contact with each other. T...

    Text Solution

    |

  5. The refractive index of glass is 1.520 for red light and 1.525 for blu...

    Text Solution

    |

  6. Time image formed by an objective of a compound microscope is

    Text Solution

    |

  7. An astronomical telescope has a large aperture to,

    Text Solution

    |

  8. Two plane mirros are inclined to each other at an angle of 60^(@). A p...

    Text Solution

    |

  9. A boy 1.5 m tall with his eye level at 1.38 m stands before a mirror f...

    Text Solution

    |

  10. A pencil of light rays falls on a plane mirror and forms a real image,...

    Text Solution

    |

  11. For a real object, which of the following can produce a real image?

    Text Solution

    |

  12. Which mirror is to be used to obtain a paralle beam of light from a s...

    Text Solution

    |

  13. When a plane electromagnetic wave enters a glass slab, then which of t...

    Text Solution

    |

  14. If wavelenght of light in air is 2400 xx 10(-10) m, then what will be...

    Text Solution

    |

  15. Why is refractive index in a transparent medium greater that one?

    Text Solution

    |

  16. The wavelenght of sodium light in air is 5890Å. The velocity of light...

    Text Solution

    |

  17. A glass slab (mu = 1.5) of thickness 6 cm is placed over a paper. What...

    Text Solution

    |

  18. Light traveling from a transparent medium to air undergoes that intern...

    Text Solution

    |

  19. A point source of light is placed 4 cm below the surface of water of r...

    Text Solution

    |

  20. In optical fibres, propagation of light is due to

    Text Solution

    |