con Probiom (01) (1S po A soap fim (1.33) is contained within a rectangular wire

Question

con Probiom (01) (1S po A soap fim (1.33) is contained within a rectangular wire trame in air (n-1.0). The frame a wedge with fat faces essentially zero as shown in the Sigure. The fim is viewed near-nomal incidence. The first violet A 420 nm) interference bright band is a distance x,-4.00 mm (shown in figure) from the zero-thickness edge is held at an angle so that the film drains downwards and foms shown in the fiqure. The thickness of the fim at one and s in reflected white ight wh of the film a) What is the thickness of the wedge at the first violet (h 420 nm) band? Value Units

Explanation / Answer

We know that the condition for the constructive interference is:

2nt = (m + 1/2)lambda

for m = 0

t = lambda/4 n

t = 420 nm/4 x 1.33 = 78.95 nm

Hence, t1 = 78.95 nm

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.