Why would you use a laser in interference experiments?
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A: Given data: Wavelength λ=128 pm Angle θ=15.8o Order n = 1
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A: λ=690 nm=690×10-7 mD=30 cmDiameter of bright central maximum =0.28 cmd=?
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Why would you use a laser in interference experiments?
in interference experiment laser is prefered over conventional sources of light . in interference experiment we need coherent source of light .coherent sources of light emits light of same frequency ,same amplitude and same phase or constant phase difference .
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