Home
Class 12
PHYSICS
In a single slit (width = a) diffraction...

In a single slit (width = a) diffraction of light of wavelength `lambda`, fringes are produced with a diffraction angle`theta`. The condition of formation of first minimum is

A

`lambda sin theta = a`

B

`a cos theta = lambda`

C

`a sin theta = lambda`

D

`lambda cos theta = a`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise EXERCISE (VERY SHORT ANSWER TYPE QUESTIONS)|42 Videos

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise EXERCISE (SHORT ANSWER TYPE QUESTIONS -I|3 Videos

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise NCERT EXEMPLEAR QUESTIONS WITH ANSWER HINT|2 Videos

  • CURRENT ELECTRICITY

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|16 Videos

  • DIGITAL CIRCUITS

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|6 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

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

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

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

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 single slit diffraction of light of wavelength lambda , angular width of the central maximum (considering slit width d) will be

A single slit produces ____diffraction [Fill in the blank.]

The width of single slit diffraction fringes varies

The width of single slit diffraction fringes varies

A single narrow slit of width a is illuminated by monochromatic parallel ray of light of wavelength 700 nm. Find the value of a in each case following the given conditions- (i) first minimum for 30^(@) diffraction angle and (ii) first secondary maximum for 30^(@) diffraction angle.

CHHAYA PUBLICATION-DIFFRACTION AND POLARISATION OF LIGHT-EXERCISE (MULTIPLE CHOICE QUESTIONS)
  1. The width of single slit diffraction fringes varies

    Text Solution

    |

  2. If width of the slit is increased, what changes would be there in line...

    Text Solution

    |

  3. In a single slit (width = a) diffraction of light of wavelength lambda...

    Text Solution

    |

  4. In a single slit experiment, angular width of the first minimum obtain...

    Text Solution

    |

  5. A beam of light of wavelength 900 nm from a distant source falls on a ...

    Text Solution

    |

  6. The width of diffraction band is

    Text Solution

    |

  7. In a single slit Fraunhofer diffraction experiment, the wavelength of ...

    Text Solution

    |

  8. In a single slit experiment, a beam of parallel monochromatic light fa...

    Text Solution

    |

  9. In a single slit experiment, the width of the slit is reduced. The lin...

    Text Solution

    |

  10. In a single slit experiment, the width of the slit is reduced to half....

    Text Solution

    |

  11. A narrow slit of 2 mm width is illuminated by a monochromatic light of...

    Text Solution

    |

  12. Resolving power of a microscope is

    Text Solution

    |

  13. For minimum angular distance between two stars, which a telescope can ...

    Text Solution

    |

  14. An unpolarised light of intensity I(0) falls on a pair of Nicol prism....

    Text Solution

    |

  15. A polaroid is inclined at an angle 45^(@) with the incident light of i...

    Text Solution

    |

  16. Amplitude of unpolarised light on a polariser is a. Amplitude of polar...

    Text Solution

    |

  17. When a light ray in air is incident on glass at 57^(@), the reflected ...

    Text Solution

    |

  18. The Brewster's law in polarisation of light is

    Text Solution

    |

  19. From Brewster's law it follows that the polarising angle depends on

    Text Solution

    |

  20. The tangent of the polarising angle is equal to the refractve indices ...

    Text Solution

    |