Home
Class 11
PHYSICS
If the distance between the first maxima...

If the distance between the first maxima and fifth minima of a double-slit pattern is 7 mm and the slits are separated by 0.15 mm with the screen 50 cm from the slits, then wavelength of the light used is

A

600 nm

B

525 nm

C

467 nm

D

420 nm

Text Solution

Verified by Experts

The correct Answer is:
A
There are three and a half fringes
from first maxima to fifth minima as shown
`rArr beta=(7mm)/3.5 =2mm`
`rArr lambda=(betaD)/d=600 nm`
Promotional Banner

Topper's Solved these Questions

  • UNITS, DIMENSION & MEASUREMENT

    RESONANCE ENGLISH|Exercise Exercise|27 Videos

  • WORK POWER AND ENERGY

    RESONANCE ENGLISH|Exercise Exercise|37 Videos

Similar Questions

Explore conceptually related problems

The distace between the first and the sixth minima in the diffraction pattern of a single slit is 0.5 mm . The screen is 0.5 m away from the slit. If wavelength of the light used is 5000 A^(0) , then the slit width will be

The distance between the first and fifth minima of a single slit diffraction patterns is 0.40 mm with screen 50 cm away from the slit, using light of wavelength 550 . (a) Find the slit width (b) Calculate the angle of the first diffraction minimum

White light of wavelength in range 400 nm to 700 nm is incident normaly on a young's double slit experiment apparatus. The distance betweenn slits is d=1 mm and distance between plane of the slits and screen in 0.8 m. At a point on the screen just in front of one of the slits the missing wavelength is (are)

In a single slit diffraction method, the distance between slit and screen is 1m . The size of the slit is 0.7mm and second maximum is formed at the distance of 2mm from the centre of the screen, then find out the wavelength of light.

Two slits in Young's double slits experiment are spaced 0.1 millimeter apart. If the fringe width is obtained as 5 mm on screen 1.5m away from slits. Find the wavelength of the light used.

In a YDSE using monochromatic visible light, the distance between the plate of slits and the screen is 1.7 m. At point P on the screen which is directly in front of the upper slit, maximum path is observed. Now, the screen is moved 50 cm closer to the plane of slits. Point P now lies between third and fouth minima above the central maxima and the intensity at P in one-fourth of the maxima intensity on the screen. ltbr. Find the wavelength of light if the separation of slits is 2 mm.

In a Young's double slit esperiment, the angular width of a fringe formed on a distant screen is 1^(@) . The slit separation is 0.01 mm. The wavelength of the light is

In the Young's double slit experiment, the spacing between two slits is 0.1mm . If the screen is kept at a distance of 1.0m from the slits and the wavelength of ligth is 5000Å , then the fringe width is

In a double slit experiment, the distance between the slits is 5.0 mm and the slits are 1.0m from the screen. Two interference patterns can be seen on the screen one due to light with wavelength 480nm, and the other due to light with wavelength 600nm. What is the separation on the screen between the third order bright fringes of the two intergerence patterns?

White light is used to illuminate the two slits in a Young's double slit experiment. The separation between the slits is b and theh screen is at a distance d (gt gtb) from the slits At a point on the screen directly in front of one of the slits, certain wavelengths are missing some of these missing wavelengths are

RESONANCE ENGLISH-WAVE OPTICS-Exercise
  1. The distance of n^(th) bright fringe to the (n+1)^(th) dark fringe in ...

    Text Solution

    |

  2. In Young's double slit experiment, we get 60 fringes in the field of v...

    Text Solution

    |

  3. If the distance between the first maxima and fifth minima of a double-...

    Text Solution

    |

  4. In Young'double-slit interference experiment, if the slit separation i...

    Text Solution

    |

  5. The path difference between two interfering waves at a point on the sc...

    Text Solution

    |

  6. If the first minima in Young's double-slit experiment occurs directly ...

    Text Solution

    |

  7. Two coherent ligh sources each of wavelength lambda are separated by a...

    Text Solution

    |

  8. A thin oil film of refracting index 1.2 floats on the surface of water...

    Text Solution

    |

  9. The wavefront of a light beam is given by the equation x + 2y + 3x = c...

    Text Solution

    |

  10. In a single-slit diffraction experiment, the width of the slit is made...

    Text Solution

    |

  11. On a very hot day, a boy standing at a large distance observers a neon...

    Text Solution

    |

  12. If torch is used in place of monochromatic light in Young's experiment...

    Text Solution

    |

  13. White light is used to illuminate the two slits in a Young's double sl...

    Text Solution

    |

  14. The ratio of intensities of two waves are given by 4:1. The ratio of t...

    Text Solution

    |

  15. Two coherent monochromatic light beams of intensities I and 4I are sup...

    Text Solution

    |

  16. The contrast in the fringes in any interference pattern depends on -

    Text Solution

    |

  17. Young's experiment is performed in air and then performed in water, th...

    Text Solution

    |

  18. The Youn'g double slit experiment is performed with blue and green lig...

    Text Solution

    |

  19. A light ray incidents on water (n=4/3) surface from air and reflected ...

    Text Solution

    |

  20. In a Fresnel biprism experiment the two positions of lens give separat...

    Text Solution

    |