Home
Class 12
PHYSICS
In a Young’s double-slit experiment, the...

In a Young’s double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central bright fringe and the fourth bright fringe is measured to be 1.2 cm. Determine the wavelength of light used in the experiment.

Text Solution

Verified by Experts

`lambda=(1.2xx10^(-2)xx0.28xx10^(-3))/(4xx1.4)m=600nm`
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    NCERT GUJARATI|Exercise EXERCISES|26 Videos
  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    NCERT GUJARATI|Exercise ADDITIONAL EXERCISES|8 Videos

Similar Questions

Explore conceptually related problems

In Young's experiment distance between twe slits is 0.28 mm and distance between the slit and the screen is 1.4 m. If distance between central bright fringe and third bright fringe is 0.9 cm wavelength of light used in Young's experiment is .....

In the Young's double slit experiment, the slits are 0.4 cm apart and the screen is 100 cm awayIf the wavelength of light used is 5000 Å then the distance between the fourth dark fringe and central bright will be ......

In a Young's double slit experiment, slits are separated by 0.5 mm and the screen is placed 150 cm away. A beam of light consisting of two wavelengths 650 nm and 520 nm is used tc obtain interference fringes on the screen. The least distance from the common central maximum to the point where the bright fringes due to both the wavelengths coincide is.....

In Young's double slit experiment, slits are arranged in such a way that besides central bright fringes, there is only one bright fringe on either side of it. Slit separation d for the given condition cannot be (if lamda is wavelength of the light used):

In young's double slit experiment the slits are illumated by light of wavelength 5890^(@) A and the distance between the fringes obtained on the screen is 0.2^(@) . If the whole apparatus is immersed in water then the angular fringe width will be, if the refractive index of water is 4//3

In an Young's experiment, the distances between two slits and that between slits and the screen are 0.05 cm and I m respectively. Find the distance between 3^(rd) bright and 5^(th) dark fringes. Take the wavelength of light equal to 5000Å

In Young's double slit experiment, the distance between two slits is made three times then the fringe width will become ......

What should be wavelength of light to get 5^(th) bright fringe at a point where 3rd bright fringe is obtained using wavelength 700 nm in Young's experiment?

NCERT GUJARATI-WAVE OPTICS-EXERCISES
  1. What is the shape of the wavefront in each of the following cases: (...

    Text Solution

    |

  2. (a) The refractive index of glass is 1.5. What is the speed of light i...

    Text Solution

    |

  3. In a Young’s double-slit experiment, the slits are separated by 0.28 m...

    Text Solution

    |

  4. In Young's double-slit experiment using monochromatic light of wavelen...

    Text Solution

    |

  5. A beam of light consisting of two wavelengths, 650 nm and 520 nm, is u...

    Text Solution

    |

  6. In a double-slit experiment the angular width of a fringe is found to ...

    Text Solution

    |

  7. What is the Brewster angle for air to glass transition? (Refractive in...

    Text Solution

    |

  8. Light of wavelength 5000 Å falls on a plane reflecting surface. What a...

    Text Solution

    |

  9. Estimate the distance for which ray optics is good approximation for a...

    Text Solution

    |

  10. The 6563Å Halpha line emitted by hydrogen in a star is found to be red...

    Text Solution

    |

  11. Explain how Corpuscular theory predicts the speed of light in a medium...

    Text Solution

    |

  12. You have learnt in the text how Huygens’ principle leads to the laws o...

    Text Solution

    |

  13. Let us list some of the factors, which could possibly influence the sp...

    Text Solution

    |

  14. For sound waves, the Doppler formula for frequency shift differs sligh...

    Text Solution

    |

  15. In double-slit experiment using light of wavelength 600 nm, the angula...

    Text Solution

    |

  16. Answer the following questions: (a) In a single slit diffraction exp...

    Text Solution

    |

  17. Answer the following questions: (b) In what way is diffraction from ...

    Text Solution

    |

  18. Answer the following questions: (c) When a tiny circular obstacle is...

    Text Solution

    |

  19. Answer the following questions: (d) Two students are separated by a ...

    Text Solution

    |

  20. Answer the following questions: (e) Ray optics is based on the assum...

    Text Solution

    |