Home
Class 12
PHYSICS
In Young's experiment, monochromatic lig...

In Young's experiment, monochromatic light is used to illuminate the two slits A and B. Interference fringes are observed on a screen placed in front of the slits. Now if a thin glass plate is placed normally in the path of the beam coming from the slit

A

(a) The fringes will disappear

B

(b) The fringe width will increase

C

(c) The fringe width will increase

D

(d) There will be no change in the fringe width but the pattern shifts

Text Solution

Verified by Experts

The correct Answer is:
D
In the presence of thin glass plate, the fringe pattern shifts, but no change in fringe width.
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    A2Z|Exercise Polarisation Of Light|37 Videos

  • WAVE OPTICS

    A2Z|Exercise Problems Based On Different Concepts|39 Videos

  • WAVE OPTICS

    A2Z|Exercise Section D - Chapter End Test|29 Videos

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

In Young’s experiment, monochromatic light through a single slit S is used to illuminate the two slits S_1 and S_2 . Interference fringes are obtained on a screen. The fringe width is found to be w. Now a thin sheet of mica (thickness t and refractive index mu ) is placed near and in front of one of the two slits. Now the fringe width is found to be w’, then :

A two slit Young's interference experiment it done with monochromatic light of wavelength 6000 A . The slits are 2 mm apart. The fringes are observed on a screen placed 10 cm away from the slits. Now a transparent plate of thickness 0.5 mm is placed in front of one of the slits and it if found that the interference pattern shifts by 5 mm . The refractive index of the transparent plate is :

A Young's double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen is

In Young's double slit experiment, if the two slits are illuminated with separate sources, no interference pattern is observed because

In Young's double slit experiment , red light of wavelength 620 nm is used and the two slits are 0.3 mm apart . Interference fringes are observed on a screen 1.3 mm apart . Calculate (i) the distance of slits from the screen and (ii) the fringe width if this distance is doubled .

In a Young's double-slit experiment, green light is incident on the two slits. The interference pattern is observed on a screen. Which one of the following changes would cause the observed fringes to be more closely spaced?

In Young's double slit experiment the slits are 0.5 mm apart and interference is observed on a screen placed at a distance of 100 cm from the slits. It is found that the 9^(th) bright fringe is at a distance of 8.835 mm from the second dark fringe from the centre of the fringe pattern. Find the wavelength of light used.

In Young's double slit experiment, the two slits are at a distance 'd' apart. Interference pattern is observed on a screen at a distance D front the slit, if at a point on the screen, directly opposite to the slits, the first dark fringe is observed, then wave length of the wave will be

In a young's double slit experiment, green light is incident on the two slits. The interference pattern is observed on a screen. Which of the following changes would cause the observed fringes to be more closely spaced?

A2Z-WAVE OPTICS-Young'S Double Slit Experiment
  1. In a Young's double slit experiment, the slits are 2mm apart and are i...

    Text Solution

    |

  2. The ratio of the intensity at the centre of a bright fringe to the int...

    Text Solution

    |

  3. In Young's experiment, monochromatic light is used to illuminate the t...

    Text Solution

    |

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

    Text Solution

    |

  5. A double slit experiment is performed with light of wavelength 500nm. ...

    Text Solution

    |

  6. When one of the slits of Young's experiment is covered with a transpar...

    Text Solution

    |

  7. A flake of glass (refractive index 1.5) is placed over one of the open...

    Text Solution

    |

  8. In the ideal double-slit experiment, when a glass-plate (refractive in...

    Text Solution

    |

  9. In a Young's double slit experimental arrangement shown here, if a mic...

    Text Solution

    |

  10. In Young's double slit experiment, the fringes are displaced index 1.5...

    Text Solution

    |

  11. In a biprism experiement, by using light of wavelength 5000Å, 5mm wide...

    Text Solution

    |

  12. In Fresnel's biprism (mu=1.5) experiment the distance between source a...

    Text Solution

    |

  13. If prism angle alpha=1^@, mu=1.54, distance between screen and prism (...

    Text Solution

    |

  14. If Fresnel's biprism experiement as held in water in spite of air, the...

    Text Solution

    |

  15. What is the effect on Fresnel's biprism experiment when the use of whi...

    Text Solution

    |

  16. In Fresnel's biprism experiment, on increasing the prism angle, the fr...

    Text Solution

    |

  17. A double slit arrangement produces interference fringes for sodium lig...

    Text Solution

    |

  18. In Young's double slit experiment, the intensity of light at a point o...

    Text Solution

    |

  19. Yellow light is used in single slit diffraction experiment with slit w...

    Text Solution

    |

  20. In order to see diffraction the thickness of the film is

    Text Solution

    |