Thin-Film Interference Light of wavelength Light 600 nm in vacuum is incident ne

Question

Thin-Film Interference Light of wavelength Light 600 nm in vacuum is incident nearly perpendicularly on a thin film whose index of refraction is 1.5 . The light travels from the top surface of the film to the bottom surface, reflects from the bottom surface, and returns to the lop surface. as the drawing indicates. How far has the light traveled inside the film? Express your answer in terms of the wavelength lambda film of the light with in the film . 2 lambda film , 3 lambda film , 4 lambda film , 6 lambda film , 12 lambda film .

Explanation / Answer

wavelength in film film = 600/1.5 = 400 nm

the distance the light travels in film = 2*1200 nm = 2400 nm = 6film

answer: (d)

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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