For maximum constructive interference,
2 nd = (1/2) lambda
Wavelength, lambda = 4 nd
Lambda = 4 x 1.43 x 75 = 429 nm (Violet color)
Comment in case any doubt please rate my answer....
3. White light shines on a 75.0 nm thick piece of fluorite (n - 1.43), if...
White light (400 nm < lambda < 750 nm) shines onto a puddle of water (n = 1.33). There is a thin (90.3 nm thick) layer of oil (n = 1.47) on top of the water. What wavelength(s) of light would you see reflected? How many wavelengths are reflected?
a) An oil slick on water is 108 nm thick and illuminated by white light incident perpendicular to its surface. What color does the oil appear (what is the most constructively reflected wavelength, in nanometers), given its index of refraction is 1.41? (Assume the index of refraction of water is 1.33.) wavelength________ nm b)A ruby laser beam is reflected from the surface of a CD onto a wall. The brightest spot is the reflected beam at an angle equal to...
A soap film (n=1.33) is 764 nm thick. White light strikes the film at normal incidence. What visible wavelengths will be constructively reflected if the film is surrounded by air on both sides?
A soap film (n=1.33) is 769 nm thick. White light strikes the film at normal incidence. Part A What visible wavelengths will be constructively reflected if the film is surrounded by air on both sides?
When 633-nm light shines on a
fracture-line crack in a thin piece of metal, a diffraction pattern
is observed on a screen located L = 0.90 m
from the metal.
Problem 34.55 Part A When 633-nm light shines on a fracture-line crack in a thin piece of metal, a diffraction pattern is observed on a screen located L 0.90 m from the metal. If the width of the central bright fringe is w = 12 mm what is the width...
Test, May 4,2018: 9-12 nidental usp n id siur on eick and tisiluminaled by white lghth is oil slick (i.e, determine the most constructively reflected wavelength from th 459 to its surface. What color will the oil slick appear to an observer looking down at the 14,n 1.33. White light has wavelength range 400 nm -700 nm.
A soap film (n=1.33) is 781 nm thick. White light strikes the film at normal incidence. You may want to review (Pages 991 - 997) . Part A What visible wavelengths will be constructively reflected if the film is surrounded by air on both sides? If there is more than one answer, separate them by a comma.
A narrow beam of white light is incident on a thick flat rectangular piece of acrylic sitting in air. The rectangle has a width of 1.25 cm and a length of 4.25 cm. The light strikes the long side at an angle of 62 degree with respect to the surface face as show. The index of refraction for acrylic depends on the wavelength of light, with n = 1.49 for red light, and n = 1.51 for violet light. (a)...
Dispersion Example Problem White light is incident on a piece of glass (n 1.55) at a 23° angle of incidence. What is the separation in degrees of the red light (wavelength 660 nm) and blue light (wavelength 470 nm) inside the glass?
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.