Home
Class 12
PHYSICS
Two incoherent sources of intensities l ...

Two incoherent sources of intensities l and 4l superpose then the resultant intensity is

A

5l

B

9l

C

3l

D

l

Text Solution

Verified by Experts

The correct Answer is:
A
`I=I_(1)+I_(2)=I+4I=5I`
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    DC PANDEY|Exercise taking it together|47 Videos

  • WAVE OPTICS

    DC PANDEY|Exercise Assertion reason|10 Videos

  • WAVE OPTICS

    DC PANDEY|Exercise For JEE Advanced E. Integer Type Questions|13 Videos

  • SOLVED PAPERS 2018

    DC PANDEY|Exercise JIPMER|22 Videos

Similar Questions

Explore conceptually related problems

Two coherent waves of intensities I and 4I interfere at a point. If the resultant intensity is 3I, then the phase difference between te two waves at the point is

It is found that what waves of same intensity from two coherent sources superpose at a certain point, then the resultant intensity is equal to the intensity of one wave only. This means that the phase difference between the two waves at that point is

Two coherent light beams of intensities I and 4I superpose in a region. Find the maximum and minimum possible intensities due to superposition in this region.

Consider interference between two sources of intensity I and 4I. Find out resultant intensity where phase difference is (i). pi//4 (ii). pi (iii). 4pi

Two coherent sources of intensity ratio 9:4 produce interference.The intensity ratio of maxima and minima of the interference pattern is

Two coherent sources of intensities I_1 and I_2 produce an interference pattern. The maximum intensity in the interference pattern will be

Light waves from two coherent sources having intensities I and 2 I cross each other at a point with a phase diff. of 60^(@) . What is the resultant intensity at the point ? If the sources were incoherent, what would be the resultant intensity ?

Assertion Two coherent sources transmit waves of equal intensity I_(0) Resultant intensity at a point where path difference is lambda/3 is also I_(0) . Reason In interference resultant intensity at any point is the average intensity of two individual intensities.

Two coherent sources of intensities I_0 each produce minimum intensity of zero then the maximum intensity they can produce by interference is?

Two coherent light beams of intensity I and 4I are superposed. If the maximum and minimum possible intensities in the resulting beam are I_("max") and I_("min") , then I_("max")-I_("min")=nI Find the value of nI. Find the value of n.

DC PANDEY-WAVE OPTICS-Check point
  1. If the amplitude ratio of two sources producing interference is 3 : 5,...

    Text Solution

    |

  2. Two sources of sound of the same frequency produce sound intensities I...

    Text Solution

    |

  3. Two incoherent sources of intensities l and 4l superpose then the resu...

    Text Solution

    |

  4. For the sustained interference of light, the necessary condition is th...

    Text Solution

    |

  5. Which of the following is not an essential condition for interference?

    Text Solution

    |

  6. In Young's double slit experiment, an interference pattern is obtained...

    Text Solution

    |

  7. In Young's double slit experiment, when two light waves form third min...

    Text Solution

    |

  8. Two slits are separated by a distance of 0.5mm and illuminated with li...

    Text Solution

    |

  9. Fringe width decrease with increase in

    Text Solution

    |

  10. In a Young's double slit experiment, the fringe width will remain same...

    Text Solution

    |

  11. Interference was observed in interference chamber when air was present...

    Text Solution

    |

  12. Monochromatic green light of wavelength 5 xx 10^(-7) m illuminates a ...

    Text Solution

    |

  13. In double slits experiment, for light of which colour the fringe width...

    Text Solution

    |

  14. The Young's double slit experiment is performed with blue light and gr...

    Text Solution

    |

  15. In Young's double slit experiment, green light (lambda=5461Å) is used ...

    Text Solution

    |

  16. In Young's double-slit experiment, if the monochromatic source of ligh...

    Text Solution

    |

  17. In the Young's double slit experiment, the interference pattern is fou...

    Text Solution

    |

  18. What happens to the fringe pattern if in the path of one of the slits ...

    Text Solution

    |

  19. In a double slit experiment, instead of taking slits of equal widths, ...

    Text Solution

    |

  20. In a Young's double-slit expriment using identical slits, the intensit...

    Text Solution

    |