What can index of refraction of oil relative to that of wate

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1) An oil film on water appears brightest at the outer regions, where it is thinnest. from this information, what can you say about the index of refraction of oil relative to that of water.

2) Why two flashlights held close together do not produce an interference pattern on a distant screen?

3) If a fine wire is stretched across the path of a laser beam, is it possible to produce a diffraction pattern?

Reference no: EM13964649

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