Light with a wavelength of 600 nm strikes a thin film. What are the first three film thicknesses at which the light will be strongly reflected? A  150 nm, 300 nm, 450 nm B  150 nm, 450 nm, 750 nm C  600 nm, 1800 nm, 3000 nm D  2400 nm, 7200 nm, 12,000 nm

Q: What condition must exist so that no phase change occurs at either boundary in a thin film…

A: Option (D) is the right answer

Q: soap film is found to be 560 nm. The light is nearly normal to the surface. What type of…

A: The waves carry disturbances from one point to the other. The interference is actually the…

Q: A sodium light, having wavelength 632.8 nm, is used to view a soap film to make it look black when…

A: For destructive interference  2nt=mλ t= λ2n

Q: Light passes through a slit and shines on a flat screen that is located L = 0.40 m away.The…

A: Given: L= 0.4 m λ = 410 nm d =width of the slit   the distance between the midpoint of the central…

Q: Consider the surface of a soap bubble as a flat thin film with refractive index n=1.28 surrounded by…

A:

Q: A material having an index of refraction of 1.25 is used as an antireflective coating on a piece of…

A: Given data The refractive index of the material is nm = 1.25 The refractive index of the glass is ng…

Q: Light is incident from air (n= 1.00) on a thin film of water (n= 1.33) that is on a car's windshield…

A: Given:refractive index(RI) of air, na = 1.00think film is of water, with RI, nw = 1.33glass RI, ng =…

Q: The distance between two slits is 1.50 × 10 -³ m. A beam of coherent light of wavelength 800 nm…

A: slit separation (d) = 1.50×10-3 m wavelength (λ) = 800 nm Screen distance (D) = 6 m

Q: b) Light passes through a slit and shines on a flat screen that is located L= 0.40 m away. The…

A:

Q: A thin uniform film of refractive index 1.750 is placed on a sheet of glass with refractive index…

A: Given: The refractive index of the thin film is = 1.750 The refractive index of sheet of glass is =…

Q: A camera lens (n= 1.50) is coated with a thin film of magnesium fluoride (n = 1.38) of thickness…

A:

Q: Lenses are often coated with thin films of transparent substances such as MgF, (n=1.38) to reduce…

A: Given Lambda= 550nm n= 1.38 d=?

Q: 18. A viewing screen is separated from a double slit by 4.80 m. The distance between the two slits…

A: Givendistance between double slit and screen, D=4.80mdistance between the slit is dd=0.0300 mm =…

Q: A thin layer of oil (n = 1.25) is floating on water (n = 1.33). What is the minimum nonzero…

A: λ = 530 nm n of oil = 1.25 n of water = 1.33

Q: A surface of glass with refraction index of 1.83 is covered with a thin film with refraction index…

A: (a)   The smallest thickness of the film when the light of the wavelength 412 nm is most strongly…

Q: A double slit is illuminated simultaneously with a laser wavelength, λ1 =500 nm and another laser…

A: given, λ1 =500 nm m1=3 m2=5

Q: A thin film of oil (n=1.38) of thickness 424 nvm with air on both sides is illuminated with white…

A: Refractive index of the oil film, n = 1.38 Thickness of film, t = 424 nm There is air on both sides,…

Q: Q3/A/We wish to coat a glass surface with an appropriate dielectric layer to provide total…

A: We know that impedance are n1= 377 ohm  and n3 = 377/1.45 = 260 ohm  Therefore  n2 = (377 × 260)1/2…

Q: A thin layer of oil (n = 1.25) covers the surface of a puddle of water (n = 1.33). If light of…

A:

Q: A double slit is illuminated simultaneously with a laser wavelength, λ1 =530 nm and another laser…

A:

Q: A thin layer of an oil (n = 1.70) floats on top of water (n = 1.33). One portion of this film…

A:

Q: A thin film of glycerin (n = 1.473) of thickness 525 nm with air on both sides is illuminated with…

A: Given data: n = 1.473 Thickness (t) = 525 nm Need to determine the wavelength is illuminated near to…

Q: Figure CQ24.7 shows rays with wavelength l incident from above onto thin films surrounded by air.…

A: Given:Wavelength of light = λIncident on a medium having refractive index = 1.5

Q: Solar cells are an example of anti-reflective coatings. Let a silicon solar cell (n = 3.45) coated…

A:

Q: A soap bubble (n = 1.30) having a wall thickness of 127 nm is floating in air. (a) What is the…

A: (c)  In general, for constructive interference in such situations: 2nt=m+12λ Now to find the…

Q: The distance between two slits is 1.50 × 10 -3 m. A beam of coherent light of wavelength 800 nm…

A: distance between two slits (d) = 0.0015 m Wavelength (λ)  = 800 nm Distance between slit and screen…

Q: #2: A film of transparent material 120 nm thick and having refractive index 1.25 is placed on a…

A: Thickness of material (t) = 120nm Refractive index of film = 1.25 Refractive index of glass = 1.50

Q: A spacer is cut from a playing card of thickness 2.90 x 10-1 m and used to separate one end of two…

A: a)Number of phase reversals can be found from the condition of destructive interference.

Q: You are setting up an interference experiment that uses a 270 nm path-length difference and a laser…

A:

Q: A thin film of oil (n = 1.44) of thickness 434 nm with air on both sides is illuminated with white…

A: thickness of oil film= 434nm refractive index, n=1.44

Q: A material having an index of refraction of 1.20 is used as an antireflective coating on a piece of…

A: Given data: n1=1.2n=1.5λ=410 nm Need to determine the minimum thickness of the film thickness.

Q: A metallic sheet has a large number of parallel slits, 5.0 mm wide and 20 cm apart. This sheet is…

A:

Q: A wave diffracts as it travels through an opening in a barrier. Which of the following variables can…

A: By changing the diffraction pattern ,we meant that either the no of maxima /minima is changing or…

Q: You are standing in air and are looking at a flat piece of glass (n = 1.52) on which there is a…

A:

Q: White light is incident at near normal on a thin film of thickness 542 nm and index of refraction n…

A:

Q: An investigator finds a fiber at a crime scene that he wishes to use as evidence against a suspect.…

A: The number of the fringes = length / separation

Q: An optical engineer needs to ensure that the bright fringes from a double-slit are 15.7 mm apart on…

A:

Q: In an experiment, olive oil (n = 1.50) is added to a glass of water (n = 1.33) slowly to form a thin…

A: Given that: no=1.50 nw=1.33λred=723.0 nm=723×10-9 mλorange=620.0 nm=620×10-9 m

Q: 30.) In a Young’s two-slit experiment, the slit separation is 0.20 mm and a screen is 0.40 m from…

A:

Q: A material having an index of refraction of 1.35 is used as an antireflective coating on a piece of…

A: a) It is given that μ=1.35λ=590 nm

Q: A light, with wavelength of 1 = 550 nm, passes through a slit and shines on a screen that is at a…

A: Width of the Central  bright fringe  is  the ratio of product of the wavelength with the distance…

Q: A double slit is illuminated simultaneously with a laser wavelength, λ1 =620 nm and another laser…

A: wavelength of first laser = 620 nm order of bright fringe for first wavelength = 3order of bright…

Q: A thin film of polystyrene n=1.49 coats a piece of glass n=1.55. When illuminated from above, the…

A:

Q: You are standing in air and are looking at a flat piece of glass (n = 1.52) on which there is a…

A:

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.