Light from a sodium lamp lamda589 nm illuminates two narrow
Light from a sodium lamp (lamda=589 nm) illuminates two narrow slits. The fringe spacing on a screen 150 cm behind the slits is 4.0 mm .
What is the spacing (in mm) between the two slits?
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light from a sodium lamp lamda589 nm illuminates two narrow slits the fringe spacing on a screen 150 cm behind the
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