ln a biprism experiment, 21 fringes are seen distinctly on a screen at a distance 1 m, when the sources are 0.5 mm apart. What is the coherent length and coherent time of the set-up. (lamda =6000 Å)

ln a biprism experiment, 21 fringes are seen distinctly on a screen at

1.	ln a biprism experiment, 21 fringes are seen distinctly on a screen at a distance 1 m, when the sources are 0.5 mm apart. What is the coherent length and coherent time of the set-up. (lamda =6000 Å)
Answer» ANSWER :`2 XX 10^(-4)s`

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ln a biprism experiment, 21 fringes are seen distinctly on a screen at a distance 1 m, when the sources are 0.5 mm apart. What is the coherent length and coherent time of the set-up. (lamda =6000 Å)

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