Homework Answers
Hence
,values of thickness to produce destructive interference is m×200nm
where "m" is number of order.
So ,values of d can be 200nm ,400nm........
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11. Consider an oil film (thickness d, n=1.5) on top of water (n = 1.3). Light...
Consider a soap bubble ( both side of film is air) of thickness d and n...
Consider a soap bubble ( both side of film is air) of thickness d and n = 1.5. Light of λ = 600 nm is incident on the bubble. Which values of d produce destructive interference?
Thin Film Interference Problems 1. Oil (n=1.25) floats on water. What is the minimum thickness of...
Thin Film Interference Problems 1. Oil (n=1.25) floats on water. What is the minimum thickness of oil in a region where it appears green ( = 525 nm)? (Ans: 210 nm) 2. A 500 nm thick layer of oil (n = 1.25) floats on water. What wavelengths of light in the visible range (400 nm to 700 nm) are maximally reflected? (Ans: 417 nm, 625 nm) 3. Athin film of acetone (n = 1.25) coats a thick glass plate (n...
10.A narrow beam of white light is incident normally on the surface of a triangular silicate...
10.A narrow beam of white light is incident normally on the surface of a triangular silicate flint glass prism with one angle of 90. The index of refraction for violet light is 1.66 and for red light is 1.61. The angle in the prism is equal to 30° of glass. a. On the diagram below show an approximate sketch for the refracted light from the opposite face of the prism. Air B White light 780° Glass Calculate angular separation between...
find the thickness of the oil that results in constructive interference of 444-nm light. please show...
find the thickness of the oil that results in constructive
interference of 444-nm light. please show wll work and round to the
closest nm
ng = 1 ny = 1.5 nw = 1.3 A film of oil, with index of refraction nf = 1.5 and thickness t, floats on a vat of water with index of refraction nw = 1.3 as shown. A ray of light is incident on the oil as shown. Assume that the ray is very close...
A thin film of acetone (n = 1.25) coats a thick glass plate (n=1.50). White light...
A thin film of acetone (n = 1.25) coats a thick glass plate (n=1.50). White light is incident normal to the film. In the reflections, fully destructive interference occurs at 600 nm and fully constructive interference at 750 nm. Calculate the thickness of the acetone film.
Thin-Film Interference Consider 3 situations in which light of wavelength 600 nm in air reflects perpendicularly from a thin film of thickness 200 nm and an index of refraction of 1.5. In each situat...
Thin-Film Interference Consider 3 situations in which light of wavelength 600 nm in air reflects perpendicularly from a thin film of thickness 200 nm and an index of refraction of 1.5. In each situation, the film lies between two media with different indices of refraction as shown. Both source and detector are above the film in air. Situation2 Situation.3 Situation1 n 1.4 n 1.4 n=1.5 n 1.3 10. (1.5 points) In which situation or situations will the film appear the...
A light ray in air (n= 1) is incident on a thin film of oil (noil...
A light ray in air (n= 1) is incident on a thin film of oil (noil = 1.60) floating on top of water (nwater = 1.33), as shown below. The wavelength of the incident light in air is Aair = 640 nm. The oil layer has a thickness t = 0.5 um. The ray is assumed to be incident practically along the normal. That is, we won't be worried about angles of reflection or refraction when doing this problem. However,...
A thin layer of oil (n = 1.50) floats on water (n = 1.33). Destructive interference...
A thin layer of oil (n = 1.50) floats on water (n = 1.33). Destructive interference is observed for light of wavelength 470 nm. Find the minimum non-zero thickness of the oil film assuming normal incidence.
A thin film of olive oil (index of refraction noil = 1.46) of thickness d is...
A thin film of olive oil (index of refraction
noil = 1.46) of thickness d is
floating on the surface of still water (index of refraction
nwater = 1.33). The index of refraction of air
is nair = 1.00.
A red laser of wavelength
λ=600nm=6.00×10−7m is incident on the film of olive oil from above
as shown. The laser reflects at the air-oil and oil-water
interfaces and interferes with itself.
Answer the following questions:
1. What does the thickness d...
White light is shone perpendicularly onto a film of unknown thickness, with index of refraction n=1.5....
White light is shone perpendicularly onto a film of unknown thickness, with index of refraction n=1.5. Draw a ray diagram that indicates the path of red light (f = 4 x 10^14 Hz) into and out of the film as it is absorbed due to destructive interference. Why will red not be seen in the reflected light?
Thin Film Interference Problems 1. Oil (n=1.25) floats on water. What is the minimum thickness of oil in a region where it appears green ( = 525 nm)? (Ans: 210 nm) 2. A 500 nm thick layer of oil (n = 1.25) floats on water. What wavelengths of light in the visible range (400 nm to 700 nm) are maximally reflected? (Ans: 417 nm, 625 nm) 3. Athin film of acetone (n = 1.25) coats a thick glass plate (n...
10.A narrow beam of white light is incident normally on the surface of a triangular silicate flint glass prism with one angle of 90. The index of refraction for violet light is 1.66 and for red light is 1.61. The angle in the prism is equal to 30° of glass. a. On the diagram below show an approximate sketch for the refracted light from the opposite face of the prism. Air B White light 780° Glass Calculate angular separation between...
find the thickness of the oil that results in constructive
interference of 444-nm light. please show wll work and round to the
closest nm
ng = 1 ny = 1.5 nw = 1.3 A film of oil, with index of refraction nf = 1.5 and thickness t, floats on a vat of water with index of refraction nw = 1.3 as shown. A ray of light is incident on the oil as shown. Assume that the ray is very close...
Thin-Film Interference Consider 3 situations in which light of wavelength 600 nm in air reflects perpendicularly from a thin film of thickness 200 nm and an index of refraction of 1.5. In each situation, the film lies between two media with different indices of refraction as shown. Both source and detector are above the film in air. Situation2 Situation.3 Situation1 n 1.4 n 1.4 n=1.5 n 1.3 10. (1.5 points) In which situation or situations will the film appear the...
A light ray in air (n= 1) is incident on a thin film of oil (noil = 1.60) floating on top of water (nwater = 1.33), as shown below. The wavelength of the incident light in air is Aair = 640 nm. The oil layer has a thickness t = 0.5 um. The ray is assumed to be incident practically along the normal. That is, we won't be worried about angles of reflection or refraction when doing this problem. However,...
A thin film of olive oil (index of refraction
noil = 1.46) of thickness d is
floating on the surface of still water (index of refraction
nwater = 1.33). The index of refraction of air
is nair = 1.00.
A red laser of wavelength
λ=600nm=6.00×10−7m is incident on the film of olive oil from above
as shown. The laser reflects at the air-oil and oil-water
interfaces and interferes with itself.
Answer the following questions:
1. What does the thickness d...
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