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A low-pressure sodium vapor lamp, whose wavelength is 5.89 x 10^-7 m, passes through double-slits that are 8.8 x 10^-4 m apart and produces an interference pattern whose fringes are 2.00 x 10^-3 m apart on the screen. What is the distance to the screen? Step 1: List the given and unknown quantities. Step 2: Write the equations that will relate the quantities. Manipulate them if necessary. Step 3: Show all the work needed to find the solution.
Added by Alicia U.
Step 1
89 E-7 m - Distance between slits (d) = 8.8 E-4 m - Distance between fringes (Δx) = 2.00 E-3 m - Unknown: Distance to the screen (L) Show more…
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A low-pressure sodium vapor lamp, whose wavelength is 5.89 x 10^(-7) m, passes through double-slits that are 2.0 x 10^(-4) m apart and produces an interference pattern whose fringes are 3.2 x 10^(-3) m apart on the screen. What is the distance to the screen? 3 meters 2.7 meters 1.6 meters 1.1 meters
Sri K.
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 $0.460 \mathrm{~mm}$. In the resulting interference pattern on a screen $2.20 \mathrm{~m}$ away, adjacent bright fringes are separated by $2.82 \mathrm{~mm}$. What is the wavelength of the light that falls on the slits?
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