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Problem 8: Consider a thin film of of soapy water (11-1.33) on Plexiglas. Since light is...
(11%) Problem 6: Consider a thin film of of soapy water (n = 1.33) on Plexiglas....
(11%) Problem 6: Consider a thin film of of soapy water (n = 1.33) on Plexiglas. Since light is a wave, there are many thicknesses of this film that will result in constructive interference. * 33% Part (a) What is the smallest non-zero thicknesses, in nanometers, of this film if i appears green (constructively reflecting 540 nm light) when illuminated perpendicularly by white light? Grade Summary Deductions 0% Potential 100% sin() cos() tan() cotan) asin() acos() atan() acotan() sinh) cosh)...
Problem 10: A soap bubble is 115 nm thick and illuminated by white light incident perpendicular...
Problem 10: A soap bubble is 115 nm thick and illuminated by white light incident perpendicular to its surface. What is the longest wavelength in him which is constructively reflected, assuming soap has the same index of refraction as water ( 1 Numerie : A numeric value is expected and not an expression 1.33)?
Problem 7: An oil slick on water is 120 nm thick and illuminated by white light...
Problem 7: An oil slick on water is 120 nm thick and illuminated by white light incident perpendicular to its surface. What is the longest wavelength (in nm) which is constructively reflected, given its index of refraction is 1.40? Numeric : A numeric value is expected and not an expression.
The reflection of light from the thin film of thickness t as shown in the figure...
The reflection of light from the thin film of thickness t as
shown in the figure appears violet (400nm) when viewed from above.
This means the two rays reflecting off of the two surfaces
interfere constructively. t is the minimum thickness. The dark grey
material has a higher index of refraction than the light grey with
the white being air. For what minimum thickness relative to t would
it need to be for the film to now appear red (700nm)...
= 498.4 nm in vacuum) when viewed at normal incidence in white light. Determine the two...
= 498.4 nm in vacuum) when viewed at normal incidence in white light. Determine the two smallest, non-zero thicknesses for the soap film if its index of refraction is 1.40. 125 nm and 375 nm O 97 nm and 179 nm 89 nm and 267 nm O 100 nm and 310 nm 158 nm and 346 nm Question 22 4 pts What is the minimum (non-zero) thickness of a benzene (n = 1.546) thin film that will result in destructive...
Problem 11: As the film of a soap bubble thins, it becomes darker, because the path...
Problem 11: As the film of a soap bubble thins, it becomes darker, because the path length difference for the reflected light becomes small when compared with the wavelength of the light and there is a phase shift upon reflection at the outer surface. In this problem, assume the wavelength of visible light is in the range 400 nm to 700 nm. If a soap bubble becomes dark when the path length difference is less than one fourth the wavelength,...
A thin film of oil (n. =1.50) with varying thickness floats on water (nw = 1.33)....
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...
Problem 5: Consider the index of refraction n in the selected media at various wavelengths as shown...
Problem 5: Consider the index of
refraction n in the selected media at various wavelengths
as shown on the table.
Part (a) What is the ratio of the speed of red
light to violet light in diamond?
Numeric : A numeric value is
expected and not an expression.
vR/vV =
__________________________________________
Part (b) What is this ratio in polystyrene?
Numeric : A numeric value is
expected and not an expression.
vR/vV =
__________________________________________
Problem 6: A narrow beam of light
containing yellow (580 nm)...
Problem 6: A thin layer of oil with index of refraction n. - 1.47 is floating...
Problem 6: A thin layer of oil with index of refraction n. - 1.47 is floating above the water. The index of refraction of water is ry - 1.3. The index of refraction of air is na 1. A light with wavelength 1 - 575 nm goes in from the air to oil and water. Part (a) Express the wavelength of the light in the oil, 1o, in terms of land og Expression: Select from the variables below to write...
5. Camera lenses (n = 1.5) are often coated with a thin film of magnesium fluoride...
5. Camera lenses (n = 1.5) are often coated with a thin film of magnesium fluoride (n = 1.34). These non-reflective coatings use destructive interference to reduce unwanted reflections. Find the condition for destructive interference in this case, and calculate the minimum thickness required to give destructive interference for light in the middle of the visible spectrum (yellow-green light, λair = 550 nm). 6. During a boring banquet you notice that the fat swimming on top of your soup is...
(11%) Problem 6: Consider a thin film of of soapy water (n = 1.33) on Plexiglas. Since light is a wave, there are many thicknesses of this film that will result in constructive interference. * 33% Part (a) What is the smallest non-zero thicknesses, in nanometers, of this film if i appears green (constructively reflecting 540 nm light) when illuminated perpendicularly by white light? Grade Summary Deductions 0% Potential 100% sin() cos() tan() cotan) asin() acos() atan() acotan() sinh) cosh)...
Problem 10: A soap bubble is 115 nm thick and illuminated by white light incident perpendicular to its surface. What is the longest wavelength in him which is constructively reflected, assuming soap has the same index of refraction as water ( 1 Numerie : A numeric value is expected and not an expression 1.33)?
Problem 7: An oil slick on water is 120 nm thick and illuminated by white light incident perpendicular to its surface. What is the longest wavelength (in nm) which is constructively reflected, given its index of refraction is 1.40? Numeric : A numeric value is expected and not an expression.
The reflection of light from the thin film of thickness t as
shown in the figure appears violet (400nm) when viewed from above.
This means the two rays reflecting off of the two surfaces
interfere constructively. t is the minimum thickness. The dark grey
material has a higher index of refraction than the light grey with
the white being air. For what minimum thickness relative to t would
it need to be for the film to now appear red (700nm)...
= 498.4 nm in vacuum) when viewed at normal incidence in white light. Determine the two smallest, non-zero thicknesses for the soap film if its index of refraction is 1.40. 125 nm and 375 nm O 97 nm and 179 nm 89 nm and 267 nm O 100 nm and 310 nm 158 nm and 346 nm Question 22 4 pts What is the minimum (non-zero) thickness of a benzene (n = 1.546) thin film that will result in destructive...
Problem 11: As the film of a soap bubble thins, it becomes darker, because the path length difference for the reflected light becomes small when compared with the wavelength of the light and there is a phase shift upon reflection at the outer surface. In this problem, assume the wavelength of visible light is in the range 400 nm to 700 nm. If a soap bubble becomes dark when the path length difference is less than one fourth the wavelength,...
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...
Problem 5: Consider the index of
refraction n in the selected media at various wavelengths
as shown on the table.
Part (a) What is the ratio of the speed of red
light to violet light in diamond?
Numeric : A numeric value is
expected and not an expression.
vR/vV =
__________________________________________
Part (b) What is this ratio in polystyrene?
Numeric : A numeric value is
expected and not an expression.
vR/vV =
__________________________________________
Problem 6: A narrow beam of light
containing yellow (580 nm)...
Problem 6: A thin layer of oil with index of refraction n. - 1.47 is floating above the water. The index of refraction of water is ry - 1.3. The index of refraction of air is na 1. A light with wavelength 1 - 575 nm goes in from the air to oil and water. Part (a) Express the wavelength of the light in the oil, 1o, in terms of land og Expression: Select from the variables below to write...
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