interferece of light and huygen principle questions with solutions

Showing 1–10 of 37 questions

• MCQmediumWave Opticsinterferece of light and huygen principle

  Two coherent sources of equal intensity I illuminate a point P. The resultant intensity at P is 2I. What is the least positive path difference between the waves reaching P?

  Options

  • Option A

    λ ÷ 8

  • Option B

    λ ÷ 4

  • Option C

    λ ÷ 2

  • Option D

    3λ ÷ 4

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• NumericeasyWave Opticsinterferece of light and huygen principle

  Two coherent sources produce intensities 4I and I separately at a point P. The two waves arrive at P exactly out of phase. If the resultant intensity is NI, find N.

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• MCQeasyWave Opticsinterferece of light and huygen principle

  Which phenomenon is not explained by the wave theory of light?

  Options

  • Option A

    Reflection

  • Option B

    Re$fraction$

  • Option C

    Dif$fraction$

  • Option D

    Compton effect

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• MCQeasyWave Opticsinterferece of light and huygen principle

  Two mutually incoherent sources illuminate the same point on a screen. The intensities produced by the two sources separately at that point are 3I and 5I. What is the resultant intensity when both sources are present simultaneously?

  Options

  • Option A

    2I

  • Option B

    8I

  • Option C

    15I

  • Option D

    4I

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• NumericmediumWave Opticsinterferece of light and huygen principle

  Two coherent waves of equal individual intensity I arrive at a point with phase difference π ÷ 3. The phase difference is then changed to 2π ÷ 3 without changing either wave amplitude. Find the ratio of the initial resultant intensity to the final resultant intensity.

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• Multi-correctmediumWave Opticsinterferece of light and huygen principle

  Which of the following conditions are required for observing a stable and appreciable interference pattern from two light sources?

  Select all that apply

  • Option A

    The two sources should have the same frequency

  • Option B

    Their relative phase difference should remain constant with time

  • Option C

    Their intensities must necessarily be exactly equal

  • Option D

    Their polarization states should not be mutually perpendicular

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• NumericmediumWave Opticsinterferece of light and huygen principle

  Two coherent point sources A and B emit in phase and are separated by a distance 3.6λ. Consider only points lying strictly between A and B on the straight line joining the sources. How many points of maximum intensity occur between the sources?

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• NumericmediumWave Opticsinterferece of light and huygen principle

  Two coherent point sources emit in phase and are separated by 4.4λ. How many points of maximum intensity lie strictly between the sources on the straight line joining them?

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• NumericeasyWave Opticsinterferece of light and huygen principle

  Two coherent waves have amplitudes 2a and 3a. At a certain point, their phase difference is 90°. If the intensity corresponding to amplitude a is I₀, the resultant intensity is NI₀. Find N.

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• NumericmediumWave Opticsinterferece of light and huygen principle

  Two coherent sources A and B are in phase and form the endpoints of the diameter of a semicircle with AB = 6λ. An observer moves along the open semicircular arc joining A and B. How many positions of minimum intensity occur on the arc?

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