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3. What is the minimum thickness of an air layer between two flat glass surfaces (a) if the glass is to appear bright when 4.50 X 102-nm light is incident at 90°? (b) if the glass is to appear dark? Use a diagram to explain your reasoning in both cases. 4. A film of gasoline (n = 1.40) floats on water (n = 1.33). Yellow light, of wavelength 5.80 X 102 nm, shines on this film at an angle of 90°. (a) Determine the minimum nonzero thickness of the film, such that the film appears bright yellow from construc- tive interference. (b) What would your answer have been if the gasoline had been spread over glass (n = 1.52) rather than over water? 5. Two plane glass plates 10.0 cm long, touching at one end, are separated at the other end by a strip of paper 1.5 × 10-3 mm thick. When the plates are illuminated by monochromatic light, the average distance between consecutive dark fringes is 0.20 cm. Calculate the wavelength of the light.

3. What is the minimum thickness of an air layer between two flat glass surfaces (a) if the glass is to appear bright when 4.50 X 102-nm light is incident at 90°? (b) if the glass is to appear dark? Use a diagram to explain your reasoning in both cases. 4. A film of gasoline (n = 1.40) floats on water (n = 1.33). Yellow light, of wavelength 5.80 X 102 nm, shines on this film at an angle of 90°. (a) Determine the minimum nonzero thickness of the film, such that the film appears bright yellow from construc- tive interference. (b) What would your answer have been if the gasoline had been spread over glass (n = 1.52) rather than over water? 5. Two plane glass plates 10.0 cm long, touching at one end, are separated at the other end by a strip of paper 1.5 × 10-3 mm thick. When the plates are illuminated by monochromatic light, the average distance between consecutive dark fringes is 0.20 cm. Calculate the wavelength of the light.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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3. What is the minimum thickness of an air layer between two flat glass surfaces (a) if the glass is to appear bright when 4.50 X 102-nm light is incident at 90°? (b) if the glass is to appear dark? Use a diagram to explain your reasoning in both cases. 4. A film of gasoline (n = 1.40) floats on water (n = 1.33). Yellow light, of wavelength 5.80 X 102 nm, shines on this film at an angle of 90°. (a) Determine the minimum nonzero thickness of the film, such that the film appears bright yellow from construc- tive interference. (b) What would your answer have been if the gasoline had been spread over glass (n = 1.52) rather than over water? 5. Two plane glass plates 10.0 cm long, touching at one end, are separated at the other end by a strip of paper 1.5 × 10-3 mm thick. When the plates are illuminated by monochromatic light, the average distance between consecutive dark fringes is 0.20 cm. Calculate the wavelength of the light.
Transcribed Image Text:3. What is the minimum thickness of an air layer between two flat glass surfaces (a) if the glass is to appear bright when 4.50 X 102-nm light is incident at 90°? (b) if the glass is to appear dark? Use a diagram to explain your reasoning in both cases. 4. A film of gasoline (n = 1.40) floats on water (n = 1.33). Yellow light, of wavelength 5.80 X 102 nm, shines on this film at an angle of 90°. (a) Determine the minimum nonzero thickness of the film, such that the film appears bright yellow from construc- tive interference. (b) What would your answer have been if the gasoline had been spread over glass (n = 1.52) rather than over water? 5. Two plane glass plates 10.0 cm long, touching at one end, are separated at the other end by a strip of paper 1.5 × 10-3 mm thick. When the plates are illuminated by monochromatic light, the average distance between consecutive dark fringes is 0.20 cm. Calculate the wavelength of the light.
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