Home
Class 12
PHYSICS
Interference was observed in interferenc...

Interference was observed in interference chamber when air was present, now the chamber is evacuated and if the same light is used, a careful observer will see

A

no interference pattern will be obtained

B

exactly same interference pattern will be obtained with better contrast

C

the fringe width is slightly decreased

D

the fringe width is slightly increased

Text Solution

Verified by Experts

The correct Answer is:
D
Refractive index is slightly decreased
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    DC PANDEY|Exercise taking it together|47 Videos

  • WAVE OPTICS

    DC PANDEY|Exercise Assertion reason|10 Videos

  • WAVE OPTICS

    DC PANDEY|Exercise For JEE Advanced E. Integer Type Questions|13 Videos

  • SOLVED PAPERS 2018

    DC PANDEY|Exercise JIPMER|22 Videos

Similar Questions

Explore conceptually related problems

Interference event is observed in

Interference fringes were observed in an interference chamber, where air was present.now, the chamber is evacuated and without disturbing the arrangement, intererence pattern is again obserbed. A careful observer will see

A double-slit interference experiment is set up in a chamber that can be completely evacuted. With monochromatic light, an interference pattern is observed when the container is open to air. As the container is evacuated, a careful observer will note that the interference fringes

When interference of light takes place

Why there is no interference pattern observed when two coherent sources are placed far apart?

The phenomenon of interference is observed when two source have

Phenomenon of interference is observed:

When interference of light place, the intensity of light

When the light source is moving towards an observer,

DC PANDEY-WAVE OPTICS-Check point
  1. Fringe width decrease with increase in

    Text Solution

    |

  2. In a Young's double slit experiment, the fringe width will remain same...

    Text Solution

    |

  3. Interference was observed in interference chamber when air was present...

    Text Solution

    |

  4. Monochromatic green light of wavelength 5 xx 10^(-7) m illuminates a ...

    Text Solution

    |

  5. In double slits experiment, for light of which colour the fringe width...

    Text Solution

    |

  6. The Young's double slit experiment is performed with blue light and gr...

    Text Solution

    |

  7. In Young's double slit experiment, green light (lambda=5461Å) is used ...

    Text Solution

    |

  8. In Young's double-slit experiment, if the monochromatic source of ligh...

    Text Solution

    |

  9. In the Young's double slit experiment, the interference pattern is fou...

    Text Solution

    |

  10. What happens to the fringe pattern if in the path of one of the slits ...

    Text Solution

    |

  11. In a double slit experiment, instead of taking slits of equal widths, ...

    Text Solution

    |

  12. In a Young's double-slit expriment using identical slits, the intensit...

    Text Solution

    |

  13. When a transparent parallel plate of uniform thickness t and refractiv...

    Text Solution

    |

  14. A thin mica sheet of thickness 2xx10^-6m and refractive index (mu=1.5)...

    Text Solution

    |

  15. In Young's double slit experiment, the aperture screen distance is 2m....

    Text Solution

    |

  16. Interference fringes were produced in Young's double-slit experiment u...

    Text Solution

    |

  17. What is the minimum thickness of a thin film (mu=1.2) that results in ...

    Text Solution

    |

  18. The phenomenon of diffraction of light was discovered by-

    Text Solution

    |

  19. In Young's double slit experiment the type of diffractive is

    Text Solution

    |

  20. The bending of light about corners of an obstacle is called

    Text Solution

    |