A thin uniform film of refractive index 1.750 is placed on a sheet of glass with a refractive index 1.50. At room temperature (2 (22.4 4 °C), this film is just thick enough for light with a wavelength 580.5 nm reflected off the top of the film to be canceled by light reflected from the top of the glass. After the glass is placed in an oven and slowly heated to 176 °C, you find that the film cancels reflected light with a wavelength 588.0 nm Part A What is the coefficient of linear expansion of the film? (Ignore any changes in the refractive index of the film due to the temperature change.) Express your answer using two significant figures. α = Π ΑΣΦ (°C)-1

icon
Related questions
Question
**Educational Content: Thin Film Interference and Thermal Expansion**

A thin uniform film with a refractive index of 1.750 is placed on a sheet of glass having a refractive index of 1.50. At room temperature (22.4 °C), the film is of thickness such that it cancels out light with a wavelength of 580.5 nm. When the glass is heated in an oven to 176 °C, the film then cancels reflected light with a wavelength of 588.0 nm. 

**Problem:**
Calculate the coefficient of linear expansion of the film. Assume there are no changes in the refractive index of the film due to temperature variations.

**Instructions:**
Provide your answer using two significant figures.

**Input Box:**
α = [Input Field] (°C)⁻¹ 

Submit your answer and, if needed, request guidance for solving the problem.
Transcribed Image Text:**Educational Content: Thin Film Interference and Thermal Expansion** A thin uniform film with a refractive index of 1.750 is placed on a sheet of glass having a refractive index of 1.50. At room temperature (22.4 °C), the film is of thickness such that it cancels out light with a wavelength of 580.5 nm. When the glass is heated in an oven to 176 °C, the film then cancels reflected light with a wavelength of 588.0 nm. **Problem:** Calculate the coefficient of linear expansion of the film. Assume there are no changes in the refractive index of the film due to temperature variations. **Instructions:** Provide your answer using two significant figures. **Input Box:** α = [Input Field] (°C)⁻¹ Submit your answer and, if needed, request guidance for solving the problem.
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS