Home
Class 12
PHYSICS
To observe diffraction, the size of the ...

To observe diffraction, the size of the obstacle

A

Should be of the same order as wavelength

B

Have no relation to wavelength

C

Should be much larger than the wavelength

D

Should be exactly `pi//2`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER 4

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos
  • MODEL TEST PAPER 6

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

It is difficult to observe diffraction in case of light because

For observing diffraction it is essential to have

What is meant by diffraction of light? Write the conditions for maxima and minima of diffraction pattern in terms of the wavelength of light used for the diffraction at single slịt.

Answer the following questions: (c) When a tiny circular obstacle is placed in the path of light from a distant source, a bright spot is seen at the centre of the shadow of the obstacle. Explain why?

What will be the angle of diffraction for the first minimum due to Fraunhoffer diffraction with sources of light of wavelength 550 nm and slit of width 0.55 mm ?

State the condition for diffraction of light to take place.

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 5-Physics
  1. Find the number of beats produced per sec by the vibrations x1=A sin (...

    Text Solution

    |

  2. What are photodiodes used for ?

    Text Solution

    |

  3. To observe diffraction, the size of the obstacle

    Text Solution

    |

  4. If two light waves having same frequency have intensity ratio 4:1 and ...

    Text Solution

    |

  5. In Young's double slit experiement when wavelength used is 6000Å and t...

    Text Solution

    |

  6. Dispersive power of prism material is

    Text Solution

    |

  7. The reaction 5^(B^(8))rarr4^(Be^(8)) takes place due to

    Text Solution

    |

  8. Match the following Column - A and Column - B

    Text Solution

    |

  9. The unit of absolute permittivity is

    Text Solution

    |

  10. The electric intensity at a point distant 1 m from the centre of a sph...

    Text Solution

    |

  11. A positive charge Q is placed at the centre O of a thin metalic spheri...

    Text Solution

    |

  12. An e.m.f. of 15 volt is applied in a circuit containing 5 henry induct...

    Text Solution

    |

  13. Equal charges Q are placed at the four corners A, B, C, D of a square ...

    Text Solution

    |

  14. In the circuit shown

    Text Solution

    |

  15. In the following circuit in state of resonance, which statement is cor...

    Text Solution

    |

  16. A bar of diamagnetic substance is placed in a magnetic field with its ...

    Text Solution

    |

  17. An electron of mass m and charge e is accelerated from rest through a ...

    Text Solution

    |

  18. What will be the equivalent resistance between the two points A and D...

    Text Solution

    |

  19. Two very thin metallic wires placed along X and Y axes carry equal cur...

    Text Solution

    |

  20. The electrochemical equivalent of magnesium is 0.126 mg//C . A current...

    Text Solution

    |