The figure below shows the path of white light’s rays which leave in phase from two small sources S1 and S2 and travel to a point X on a screen. The path difference is S2X−S1X=8.7×10−7m. What wavelength of light gives complete destructive interference at X?

The figure below shows the path of white light’s rays which leave in

1.	The figure below shows the path of white light’s rays which leave in phase from two small sources S1 and S2 and travel to a point X on a screen. The path difference is S2X−S1X=8.7×10−7m. What wavelength of light gives complete destructive interference at X?
Answer» The figure below shows the path of white light’s rays which leave in phase from two small sources $S_{1}$ and $S_{2}$ and travel to a point X on a screen. The path difference is $S_{2} X - S_{1} X = 8.7 \times 10^{- 7} m$ . What wavelength of light gives complete destructive interference at X?

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The figure below shows the path of white light’s rays which leave in phase from two small sources S1 and S2 and travel to a point X on a screen. The path difference is S2X−S1X=8.7×10−7m. What wavelength of light gives complete destructive interference at X?

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