Home
Class 12
PHYSICS
If a light of wavelength lambda falling ...

If a light of wavelength `lambda` falling on a sibgle slit of width 'a` diffracts at an angle `theta`, the condition of first minima will b

A

`lambdasintheta=a`

B

`a cos theta=lambda`

C

`asintheta=lambda`

D

`lambda costheta=a

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MODEL PAPER SET-18

    UNITED BOOK HOUSE|Exercise EXERCISE|27 Videos

  • QUESTION PAPER 2016

    UNITED BOOK HOUSE|Exercise EXERCISE|49 Videos

Similar Questions

Explore conceptually related problems

If a light of wavelength lambda falling on a single slit of width a diffracts at an angle theta , the condition of first minima will be

In the diffraction of light of wavelength lambda at a single slit of width a, the angle theta between the central maximum and first minimum on either side is

In a single slit diffraction, what is the condition for formation of first minimum point?

A parallel beam of light of wavelength lambda is incident normally on a single slit of width d. Diffraction bands are obtained on a screen placed at a distance D from the slit. The second dark band from the central bright band will be at a distance given by

A light of wavelength lambda falls on a narrow slit of width d.A diffraction fringe is formed on a screen placed at distance D from the slit. If the linear width of the central maximum equals to the width of the slit, will be the value of D?

For a parallel beam of monochromatic light of wavelength lambda , diffraction is produced by a single slit whose width a is of the order of the wavelength of the light. If D is the distance of the screen from the slit, the width of the central maxima will be

In a single slit diffraction, what is the condition for formation of first secondary maximum?

A monochromatic light of wavelength 500 nm is incident normally on a single slit of width 0.2 mm to produce a diffraction pattern. Find the angular width of the central maximum obained on the screen. Estimate the number of fringes obatined in Young's double slit experiment with fringe width 0.5 mm, which can be accommodated within the region of total angular spread of the central maximum due to single slit.

A slit of width a is illuminated by red light of wavelength 650 nm. The first diffraction minimum is observed at an angle theta_(1) = 5.2^(@) from the direction of the incident beam. The angle theta_(2) at which the second minimum is observed is

A fraunhofer diffraction pattern is formed by a light,of wavelength 600nm, through a slit if width 1.2 mu m . Find the angular position of the first minimum and angular width of the central maximum.

UNITED BOOK HOUSE-QUESTION PAPER 2015-EXERCISE
  1. The total energy of an electron for any patrticular energy level in h...

    Text Solution

    |

  2. The wavelength of matter waves associated with an electron of mass m ...

    Text Solution

    |

  3. If a light of wavelength lambda falling on a sibgle slit of width 'a d...

    Text Solution

    |

  4. The refractive index of the material of a double equiconvex lens id 1....

    Text Solution

    |

  5. Electromagnetic waves are produced by

    Text Solution

    |

  6. A current flowing through a coil changes from +2A to -2A in 0.05 s and...

    Text Solution

    |

  7. an ac having a peak value of 1.41 ampere is used to heat a wire. A DC ...

    Text Solution

    |

  8. IF current I flows in a coil of area A and number of turns n, the magn...

    Text Solution

    |

  9. A conductor of uniform cross-section is carrying a current of a ampere...

    Text Solution

    |

  10. 64 tiny drops of water having same radius and same charge are combione...

    Text Solution

    |

  11. The statvolt corresposnding to one volt is

    Text Solution

    |

  12. At what position should an object be placed in front of a spherical mi...

    Text Solution

    |

  13. What is meant by accomodation of human eye?

    Text Solution

    |

  14. Write down the equation of Lorentz force acting on a moving charged pa...

    Text Solution

    |

  15. alpha- particle and (ii) beta particle are both projected with the sa...

    Text Solution

    |

  16. Prepare the truth table of a two input NAND gate.

    Text Solution

    |

  17. Which physical quantity has the unit Wb/m^2? Is it a scalar or a vecot...

    Text Solution

    |

  18. An ac voltage e=E0 sinomegat is applied across an ideal inductor of sl...

    Text Solution

    |

  19. Establish the relation between drift velocity of electron and current ...

    Text Solution

    |

  20. Why is potentiometer converted for the measurement of emf of a cell? E...

    Text Solution

    |