Question

Coherent light from a sodium-vapor lamp is passed through a filter that blocks everything except for...

Coherent light from a sodium-vapor lamp is passed through a filter that blocks everything except for light of a single wavelength. It then falls on two slits separated by 0.510 mm . In the resulting interference pattern on a screen 2.22 maway, adjacent bright fringes are separated by 2.86 mm .

Part A

What is the wavelength of the light that falls on the slits?

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Answer #1

Soll- & given d= = 0.510 mm D - 2.22 m = 2.86 mm p= dze pad IZZI = 2.86mm fringe width D slits Scresu: c we know XD d ßd l D

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