Two monochromatic coherent sources of wavelength 5000 A0 are placed along the line normal to the screen as shown in the figure.The order of the central bright fringe, if d = 0.5 mm, D = 1 m
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a
1000
b
500
c
10000
d
100
answer is A.
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Detailed Solution
At the central maxima, θ = 00Path difference should be integral multiple of λ as it is maximum.
Two monochromatic coherent sources of wavelength 5000 A0 are placed along the line normal to the screen as shown in the figure.The order of the central bright fringe, if d = 0.5 mm, D = 1 m