What minimum thickness of oil $(\mathrm{n}=1.50)$ on the surface of water $(\mathrm{n}=1.33)$ would give destructive interference for $550 \mathrm{~nm}$ light at normal incidence?
A) $78.0 \mathrm{~nm}$
B) $92.0 \mathrm{~nm}$
C) $80.0 \mathrm{~nm}$
D) $275 \mathrm{~nm}$
E) $183 \mathrm{~nm}$

Question

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The Answer of What minimum thickness of oil $(\mathrm{n}=1.50)$ on the surface of water $(\mathrm{n}=1.33)$ would give destructive interference for $550 \mathrm{~nm}$ light at normal incidence?
A) $78.0 \mathrm{~nm}$
B) $92.0 \mathrm{~nm}$
C) $80.0 \mathrm{~nm}$
D) $275 \mathrm{~nm}$
E) $183 \mathrm{~nm}$

What Minimum Thickness of Oil (n=1.50)(\mathrm{n}=1.50)(n=1.50) On the Surface of Water (n=1.33)(\mathrm{n}=1.33)(n=1.33)

What Minimum Thickness of Oil $(\mathrm{n}=1.50)$ On the Surface of Water $(\mathrm{n}=1.33)$