Problem 8: For normal reflection off the thin surface of a bubble made of soapy water...
A bubble of soapy water is formed in air. (Surface tension of soapy water: 0.0370 N/m). a) What gauge pressure is maintained in a bubble of radius 5.0 mm? b) What radius does a bubble need so that its gauge pressure is 5.0 Pa?
When white light illuminates a thin film normal to the surface, it strongly reflects both blue light (500 nm in air) and red light (700 nm in air) as shown in the figure below. White light Blue and red are reflected Air Film Water 1) Calculate the minimum thickness of the film if it has an index of refraction of 1.35 and it "floats" on water with n = 1.33. (Express your answer to two significant figures.) 135 nm Submit
#14 Thin Soap Films: Maximizing Reflection A soap bubble consists of a film with an index of refraction of 1.50, with air on either side of the film. What is the minimum thickness of the film such that red light with a wavelength of 700 nm is reflected with the greatest intensity? O A. 117 nm B. 233 nm O C. 350 nm O D. 700 nm #15 Thin Soap Films: Maximizing Reflection A soap bubble consists of a film...
A thin film of oil (n. =1.50) with varying thickness floats on water (nw = 1.33). When it is illuminated from above by white light, the reflected colors are as shown in the figure below. In air, the wavelength of yellow light is 580 nm. (a) What is the oil's thickness t at point B? (hint: this is the second thinnest region for yellow light]. (b) Estimate (no calculation) the oil's thickness at point A. [hint : use the result...
A thin layer of oil (n = 1.20) floats on the surface of a puddle of water (n = 1.33). One part of the oil film appears bright greenish blue, i.e. it strongly reflects light with a wavelength in vacuum of 497 nm. What is the smallest nonzero film thickness of the oil film in this region? 207 nm 550 nm 458 nm 229 nm 357 nm
A soap film bubble (n = 1.33) with air (n = 1.00) on both sides has the smallest nonzero film thickness, such that it appears yellow by strongly reflecting light with a wavelength of 570 nm in vacuum. What would be the next smallest thickness for the soap film, such that it still appeared yellow by strongly reflecting 570-nm light? 285 nm 214 nm 665 nm 375 nm 321 nm
A soap film bubble (n = 1.33) with air (n = 1.00) on both sides has the smallest nonzero film thickness, such that it appears yellow by strongly reflecting light with a wavelength of 570 nm in vacuum. What would be the next smallest thickness for the soap film, such that it still appeared yellow by strongly reflecting 570-nm light? 285 nm 214 nm 665 nm 375 nm 321 nm
A thin layer of oil (n = 1.40) floats on the surface of a puddle of water (n = 1.33). One part of the oil film appears bright greenish-blue, i.e. it strongly reflects light with a wavelength in vacuum of 497 nm. What is the smallest nonzero film thickness of the oil film in this region? 207 nm O 89.0 nm 124 nm 249 nm O 178 nm
A thin layer of oil (n = 1.40) floats on the surface of a puddle of water (n = 1.33). One part of the oil film appears bright greenish-blue, i.e. it strongly reflects light with a wavelength in vacuum of 497 nm. What is the smallest nonzero film thickness of the oil film in this region? O 207 nm O 89.0 nm O 124 nm O 249 nm 178 nm
A thin layer of oil (n = 1.40) floats on the surface of a puddle of water (n = 1.33). One part of the oil film appears bright greenish-blue, i.e. it strongly reflects light with a wavelength in vacuum of 497 nm. What is the smallest nonzero film thickness of the oil film in this region? Group of answer choices 207 nm 89.0 nm 124 nm 249 nm 178 nm