Home
Class 12
PHYSICS
Two slits are made one millimetre apart ...

Two slits are made one millimetre apart and the screen is placed one metre away. What is the fringe separation when bluegreen light of wavelength 500 nm is used?

Text Solution

Verified by Experts

Fringe spacing `=(Dlambda)/(d)=(1xx5xx10^(-7))/(1xx10^(-3))m`
`=5xx10^(-4)m=0.5mm`
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    NCERT BANGLISH|Exercise EXERCISES|26 Videos

  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    NCERT BANGLISH|Exercise ADDITIONAL EXERCISES|6 Videos

Similar Questions

Explore conceptually related problems

Two slits are kept 1 mm apart and the screen is placed 1m away. What would be the width of fringe if blue - green light of 500 nm wavelength is used ? What would be the width of each slit for 10 bright bands to be obtained within the central maximum in a single slit arrangement ?

In a double slit experiment, the two slits are 1 mm apart and the screen is placed 1 m away. A monochromatic light of wavelength 500 mm is used.what will be the width of each slit for obtaining ten maxima of double slit within the central maxima of single slit pattern?

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

Using monochromatic light of wavelength 4000 Å fringes of width 0.1 mm are formed on the screen in Young's double slit experiment . If the screen is now shifted to twice the previous distance the what will be the fringe width of the interference pattern when a wavelength of 6000 Å is used ?

Athin plastic sheet of refractive index 1.6 is used to cover one of the slits of a double slit arrangement. The central point on the screen is now occupied by what would have been the 7" bright fringe before the plastic was used. If the wavelength of light is 600 nm, what is the thickness (in um) of the plastic?

A double slit is illuminated by a light of wavelength 6000 Å. The slits are 0.1 cm apart and the screen is 1 m away. Find (i) The angular position of 10th bright fringe and (ii) Distance between two successive dark bands.

A thin plastic of refractive index 1.6 is used to cover one of the slits of a double slit arrangement. The central point omn the screen is now occupied by what would have been the 7th bright fringe before the plastic was used. If the wavelength of light is 600 nm, what is the thickness ( in mu m ) of the plastic?

In a double slit experiment using a white light, a white fringe is noticed on the screen. What will be the change in position of thewhite fringe if the screen is shifted 0.05 m from the slits?

NCERT BANGLISH-WAVE OPTICS-EXERCISES
  1. Two slits are made one millimetre apart and the screen is placed one m...

    Text Solution

    |

  2. Monochromatic light of wavelength 589 nm is incident from air on a wat...

    Text Solution

    |

  3. What is the shape of the wavefront in each of the following cases: (...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |