Home
Class 12
PHYSICS
Assertion (A) : No interfrence pattern i...

Assertion (A) : No interfrence pattern is detected when two coherent sources are very closer to each other. (i.e separation almost zero)
Reason (R ) : The fringe width is inversely proportional to the distance between the two slits

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    ERRORLESS |Exercise wave Nature and Interference of Light|1 Videos

  • WAVE OPTICS

    ERRORLESS |Exercise Doppler s Effect of Light|1 Videos

  • RAY OPTICS

    ERRORLESS |Exercise SET|25 Videos

Similar Questions

Explore conceptually related problems

What are coherent sources of light ? Why nointerference pattern is observed when two coherent sources are (i) too close (ii) very far apart ?

What happens to interference fringes when the distance between the two coherent sources is decreased?

Assertion : When a thin transparent sheet is placed in front of both the slits of Young's experiment, the fringe width will remains same. Reason : In Young's experiment, the fringe width is directly proportional to wavelength of the source used.

Assertion (A) : For best contrast between maxima and minima in the interference patten of Young's double slit experiment the intensity of light emerging out of the two slits should be equal. Reasson (R ) : The intensity of interference pattern is proportional to the square of the amplitude.

In YDSE, when separation between two slits is increased, fringe width

Statement I: In Young's double-slit experiment, the two slits are at distance d apart. Interference pattern is observed on a screen at distance D from the slits. At a point on the screen which is directly opposite to one of the slits, a dark fringe is observed. Then, the wavelength of wave is proportional to the squar of distance between two slits. Statement II: For a dark fringe, intensity is zero

Assertion (A): Two bar magnets attract when they are brought near to each other with the same pole. Reason (R): Unlike poles will attract each other.

ERRORLESS -WAVE OPTICS-SET
  1. Assertion (A) : No interfrence pattern is detected when two coherent s...

    Text Solution

    |

  2. Following figures shows sources S1 and S2 that emits light of waveleng...

    Text Solution

    |

  3. In a Young's double slit experimental arrangement shown here, if a mic...

    Text Solution

    |

  4. In the set up shown in figure, the two slits S1 and S2 are not equidis...

    Text Solution

    |

  5. The intensity ratio of two coherent sources of light is p. They are i...

    Text Solution

    |

  6. Three waves of equal frequency having amplitudes 10mum, 4mum, 7mum arr...

    Text Solution

    |

  7. Four different independent waves are represented by (i) y(1) = a(1) ...

    Text Solution

    |

  8. A beam of light consisting of two wavelength 650nm and 520nm is used t...

    Text Solution

    |

  9. Two identical radiators have a separation of d=lambda//4 where lambda ...

    Text Solution

    |

  10. In Young’s double slit experiment, the 8 th maximum with wavelength la...

    Text Solution

    |

  11. Light of wavelength 500nm is used to form interference pattern in Youn...

    Text Solution

    |

  12. Two coherent sources of equal intensity produce maximum intensity of 1...

    Text Solution

    |

  13. The path difference between two interfering waves of equal intensities...

    Text Solution

    |

  14. In a Young's double slit experiment, I0 is the intensity at the centra...

    Text Solution

    |

  15. In a Fresnel’s diffraction arrangement, the screen is at a distance of...

    Text Solution

    |

  16. If n represents the order of a half period zone, the area of this zone...

    Text Solution

    |

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

    Text Solution

    |

  18. In Young's double slit experiment, the fringes are displaced index 1.5...

    Text Solution

    |

  19. Two waves of equal amplitude and frequency interfere each other. The r...

    Text Solution

    |

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

    Text Solution

    |

  21. A parallel- plate capacitor with plate area A and separation between t...

    Text Solution

    |