Home
Class 12
PHYSICS
The equations of light wave from two sou...

The equations of light wave from two sources are `y_1=a_1sinomegat` and `y_2=a_2sin(omegat+phi)` where the symbols have their usual meaning. The individual intesities are `I_1` and `I_2`. Show that the minimum resultant intesity due to superposition is
`I_(min)=I_1+I_2-2sqrt(I_1I_2)`.

Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPERS

    R G PUBLICATION|Exercise Exercise|35 Videos

Similar Questions

Explore conceptually related problems

What is virtual ampere? Deduce the relation I_(mns)=I_0/sqrt2

Find real theta such that (3+2i sin theta)/(1-2i sin theta) is purely real.

If the two light wave have different amplitude, then show that intensity ratio I_(max)/(I_(min))= (a+b)^2/(a-b)^2

Prove that the following are irrationals:(i) 1/sqrt2

(i) Find the coordinates of the points which divide the line segment joining the points (5, 4, 2) and (-1, -2, 4) in the ratio 3 : 2 (a) internally

Give examples to show that : A^2=I , where A ne I

R G PUBLICATION-WAVE OPTICS-EXERCISE
  1. Establish Brewster's law polarisation of light.

    Text Solution

    |

  2. What are coherent source of light? Why no interference pattern is obs...

    Text Solution

    |

  3. The equations of light wave from two sources are y1=a1sinomegat and y2...

    Text Solution

    |

  4. Two slits are 1mm apart and a screen is placed at some distance. When ...

    Text Solution

    |

  5. With what speed should a galaxy move with respect to the earth so that...

    Text Solution

    |

  6. Deduce Snell's Law of refraction for a place weve using Huygen's princ...

    Text Solution

    |

  7. "When monochromatic light is incident on a surface separating two medi...

    Text Solution

    |

  8. What is the effect on the interference fringes in Young's double slit ...

    Text Solution

    |

  9. If you move the source slit closer to the double slit in Young's exper...

    Text Solution

    |

  10. Describe Young's double slit experiment and determine the conditions f...

    Text Solution

    |

  11. What are unpolarized and linearly polarized light waves? What is a pol...

    Text Solution

    |

  12. Establish the following relation n2/V-n1/U=(n2-n1)/R

    Text Solution

    |

  13. Explain Huygen's principle of wave optics.

    Text Solution

    |

  14. What is blue shift? Sodium light of wavelength 589.0overset(@)A travel...

    Text Solution

    |

  15. A beam of light consisting of two wavelengths 6500 A ˙ and 5200 ...

    Text Solution

    |

  16. What is dual character of light?

    Text Solution

    |

  17. Give the expression for the fringe widh in Young's experiments.

    Text Solution

    |

  18. What is diffraction?

    Text Solution

    |

  19. What is oil immersion objective?

    Text Solution

    |

  20. Which phenomem establish the wave nature of light?

    Text Solution

    |