Q.5 Three coherent sources producing plane wave fronts towards right of same amplitude and wavelength (3A) are situated

[answerhappygod]

Q 5 Three Coherent Sources Producing Plane Wave Fronts Towards Right Of Same Amplitude And Wavelength 3a Are Situated 1 (39.98 KiB) Viewed 40 times

correct answer is B and C .
kindly provide proper explanation with all details for each step and each options.
detailed mathematical steps for obtaining minima from three sources are required.
Do not refer wrong incomplete solutions already existing in this and other portal submitted earlier for this question.
Q.5 Three coherent sources producing plane wave fronts towards right of same amplitude and wavelength (3A) are situated on a line as shown in the diagram. If an observer P also lies on the same line and observes no light when sources S₁, S₂ and S3 are switched on simultaneously. Taking all suitable approximations and d₁ & d₂ <<< D. S₁ S₂ S3 P Rate this question Answer d₁ must be 3). d₁ may be d₂ may be 47. d₁ must be d₁ d₂