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In coherent sources it is necessary that there
  • a)
    Amplitudes are same
  • b)
    Wavelengths are same
  • c)
    Frequencies are same
  • d)
    Initial phase remains constant
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
In coherent sources it is necessary that therea)Amplitudes are sameb)W...
Two sources are said to be coherent if there always exists a constant phase difference between the waves emitted by these sources. But when the sources are coherent, then the resultant intensity of light at a point will remain constant and so interference fringes will remain stationary.
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Most Upvoted Answer
In coherent sources it is necessary that therea)Amplitudes are sameb)W...
Coherence in the context of wave sources refers to the relationship between the phases of the individual waves that make up the source. Coherent sources are those in which the phase difference between any two waves remains constant over time.

Community Answer
In coherent sources it is necessary that therea)Amplitudes are sameb)W...
Becoz coherent source means that sorce produce from a single source ,So they have a constant phase differance between them
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In coherent sources it is necessary that therea)Amplitudes are sameb)Wavelengths are samec)Frequencies are samed)Initial phase remains constantCorrect answer is option 'D'. Can you explain this answer?
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