A dark fringe in the diffraction pattern of a single slit is located at an angle

Question

A dark fringe in the diffraction pattern of a single slit is located at an angle of %u03B8A = 33 degrees. With the same light, the same dark fringe formed with another single slit is at an angle of %u03B8B = 50 degrees. Find the ratio WA/WB of the widths of the two slits.
A dark fringe in the diffraction pattern of a single slit is located at an angle of %u03B8A = 33 degrees. With the same light, the same dark fringe formed with another single slit is at an angle of %u03B8B = 50 degrees. Find the ratio WA/WB of the widths of the two slits.
A dark fringe in the diffraction pattern of a single slit is located at an angle of %u03B8A = 33 degrees. With the same light, the same dark fringe formed with another single slit is at an angle of %u03B8B = 50 degrees. Find the ratio WA/WB of the widths of the two slits.

Explanation / Answer

wA/wB=sinB/sinA=1.4

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