Home
Class 12
PHYSICS
A narrow slit of width 0.025 mm is illum...

A narrow slit of width 0.025 mm is illuminated by a parallel beam of light. The diffraction pattern is observed through a telescope. It is found that to reach the first minimum, the telescope has to be rotated through `1^(@)24`' from the direction of the direct ray. Calculate the wavelength of light used.
`[6100 Å]`

Text Solution

Verified by Experts

The correct Answer is:
`[6100 Å]`
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems|28 Videos

  • WAVE OPTICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Numerical MCQs Single Options Correct|49 Videos

  • THERMODYNAMICS LAWS & SPECIFIC HEATS OF GASES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 3.4|11 Videos

  • WAVES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems for Preparation of NSE, INPhO & IPhO|135 Videos

Similar Questions

Explore conceptually related problems

A parallel beam of light of 600 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen .12 m away. It is observed that the first minimum is at a distance of 3 mm from the centre of the screen. Calculate the width of the slit.

A parallel beam of light of 450 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 1.5 m away. It is observed that the first minimum is at a distance of 3 mm from the centre of the screen. Calculate the width of the slit.

A single slit of width 0.1 mm is illuminated by a parallel beam of light of wavelength 6000 Å and diffraction bands are observed on a screen 0.5 m from the slit. The distance of the third dark band from the central bright band is:

A single slit of width 0.1 mm is illuminated by a parallel beam of light of wavelength 6000Å and diffraction bands are observed on a screen 0.5 m from the slit. The distance of the third dark band from the central bright band is _______ mm.

A single slit of width 0.1mm is illuminated by parallel light of wavelength 6000Å, and diffraction bands are observed on a screen 40cm from the slit. The distance of third dark band from the central bright band is:

A parallel beam of light of wavelength 500 nm falls on a narrow slit and the resulting diffraction pattern is observe on screen 1 m away. It is observed that the first minimum is at a distance of 2.5 mm from the centre of the screen. Find the width of the slit.

Fraunhofer diffraction from a single slit of width 'a' is observed with a parallel beam of light of 500 nm and the resulting diffraction pattern is observed on a screen 1.2 m away. The first minimum is observed at a distance of 2.5 mm from the centre of the screen. Find the value of 'a' .

The first minimum of a single slit diffraction pattern is observed at angle 2^(@) with a light of wavelength 698 nm. The width of this slit is

PHYSICS GALAXY - ASHISH ARORA-WAVE OPTICS-Advance MCQs with One or More Options Correct
  1. A light wave is travelling along - Y direction. For this light wave, w...

    Text Solution

    |

  2. In a single slit diffraction pattern obtained on a screen, if the slit...

    Text Solution

    |

  3. Two coherent light waves each having intensities I(0) interfering at a...

    Text Solution

    |

  4. In a series of polaroids placed in such a way that optical axis of eac...

    Text Solution

    |

  5. Two point sources are d = nlambda apart. A screen is held at right ang...

    Text Solution

    |

  6. Two coherent monochromatic sources A and B emit light of wavelength la...

    Text Solution

    |

  7. In a Young's arrangement, the distance between the slits is 1.5 mm and...

    Text Solution

    |

  8. A double slit apparatus is immersed in a liquid of refractive index 1....

    Text Solution

    |

  9. In a YDSE, the separation between slits is 2 mm where as the distance ...

    Text Solution

    |

  10. A narrow slit of width 0.025 mm is illuminated by a parallel beam of l...

    Text Solution

    |

  11. Angular width of central maximum in the Fraunhoffer diffraction patter...

    Text Solution

    |

  12. In a Young's double slits set up, the wavelength of light used is 546n...

    Text Solution

    |

  13. In a double slit pattern (lambda = 6000Å), the first order and tenth o...

    Text Solution

    |

  14. An interference is observed due to two coherent sources S1 placed at o...

    Text Solution

    |

  15. A Young's double slit apparatus is immersed in a liquid of refractive ...

    Text Solution

    |

  16. In a Young's double slit experiment, the light sources is at distance ...

    Text Solution

    |

  17. A screen is placed 50 cm from a single slit, which is illuminated with...

    Text Solution

    |

  18. In a double slit experiment, the distance between the slits is 5.0 mm ...

    Text Solution

    |

  19. In a Young's double slit experiment using monochromatic light, the fri...

    Text Solution

    |

  20. Two very narrow slits are spaced 1.80 mum apart and are placed 35.0 cm...

    Text Solution

    |