The formula for destructive interference in this case is ...
2nt = (m + .5)λ
(2)(1.38)(t) = (.5)(640 X 10-9)
t = 1.16 X 10-7 m (116 nm)
What is the thinnest film of a coating with n = 1.38 on glass (n=1.52) for...
A thin film of MgF2 (n = 1.38) coats a piece of glass. Constructive interference is observed for the reflection of light with wavelengths of 470 nm and 705 nm . Part A What is the thinnest film for which this can occur? Express your answer with the appropriate units.
a film with n = 1.64 is deposited on glass. what is the thinnest film that will produce constructive interference in the reflection of light with a wavelength of 540 nm?
Please show work. Thank you A ray of light traveling through air is incident upon a sheet of crown glass (n = 1.52) at an angle of 30 degree to the normal. What is the angle of refraction? A ray of light passes into water from air at an angle of 50 degree to the lake's surface. What is the angle of refraction? What is the speed of light in the water? Calculate the s of light in a diamond....
A thin film with n = 1.6 coats a piece of glass. Destructive interference is observed for the reflection of light with wavelengths of 450 nm and 675 nm. What is the thinnest film for which this can occur? Express your answer in nm.
2.1.1. Two coherent sources, A and B, of radio waves are 40.0 cm apart. Each source emits waves with wavelength 50.0 cm. Consider points along the line between the two sources. At what distances from A, if any, is the interference (a) constructive, (b) destructive? 2.1.2. A coherent source of monochromatic light of unknown wave- length shines on double slits separated by 0.40 mm. Bright spots separated by 0.80 cm appear on a screen 5.0 m away. What is the...
A lens made of glass (n. - 1.52) is coated with a thin film of MgF, (n = 1.38) of thickness t. Visible light is incident normally on the coated lens as in the figure below. Glass thin film Incident An illustration shows a rectangular cross- section of glass lens oriented such that a thin film of thickness tcoats its left side. A ray of light directed to the right is perpendicularly incident upon the left side of the film....
I dont understand thin film interference. Thanks in advance n-1.00 n-1.33 n=1 50 3. A thin film of thickness t and index of refraction 1.33 coats a glass with index of refraction 1.50 as shown above. Which of the following thicknesses t will not reflect light with wavelength 640 nm in air? (A) 160 nm (8) 240 nm (C) 360 nm (D) 480 nm 4. Lenses in fine quality cameras are coated to reduce the reflection from the lenses. If...
Question 9 1 pts A glass (n 1.5) has a thin film coating (n = 2.3). What is the thinnest coating (in nm) that maximizes the intensity of reflected light with wavelength 499 nm (in air)?
What is the thinnest film of MgF2 (n = 1.39)on glass that produces a strong reflection for light with a wavelength of 490 nm?
Chapter 27, Problem 15 provides some pertinent background information for this problem. A transparent film (n 1.31) is deposited on a glass plate (n-1.52) to form a nonreflective coating. The film has a thickness of 1.00 x 10-7 m, what is the longest possible wavelength (in vacuum) of light for which this film has been designed? Incident light Film Glass plate Units Number the tolerance is +-2% Chapter 27, Problem 15 provides some pertinent background information for this problem. A...