Question: The Suns disk subtends an angle of about 9.3 10 -3 rad as seen from the Earths surface. If sunlight is filtered to a

The Sun’s disk subtends an angle of about 9.3 × 10^-3 rad as seen from the Earth’s surface. If sunlight is filtered to a mean wavelength of 550 nm, roughly what is the area of coherence on an Earth based aperture screen? How far apart will the pinholes in that screen be when the interference fringes they otherwise generate vanish?

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