Chapter 36, Problem 010Manufacturers of wire (and other objects of small dimension) sometimes use alaser to continually monitor the thickness of the product. The wire intercepts thelaser beam, producing a diffraction pattern like that of a single slit of the samewidth as the wire diameter (the figure below). Suppose a helium-neon laser, ofwavelength 632.8 nm, illuminates a wire, and the diffraction pattern appears on ascreen at distance L = 2.72 m. If the desired wire diameter is 1.39 mm, what isthe observed distance between the two 12-th-order minima (one on each side ofthe central maximum)?Wire-makingmachineLWireHe-NelaserNumberUnits

Solution: Given Values, Wavelength of laserλ=632.8 nm screen distance(L)=2.72 m Diameter of the…

Answered: Manufacturers of wire (and other…

Similar questions

Light from a laser is directed through a pair of slits that are 40 mm apart. If the laser light has a wavelength of 600 nm, calculate the distance between three sequential bright fringes that would be produced if projected onto a screen 1 m from the slits. (A) 3.0 cm (B) 1.5 cm (C) 0.5 cm (D) 1.0 cm
Information is stored on an audio compact disc, CD-ROM, or DVD disc in a series of pits on the disc. These pits are scanned by a laser beam. An important limitation on the amount of information that can be stored on such a disc is the width of the laser beam. Explain why this should be, and explain how using a shorter-wavelength laser allows more information to be stored on a disc of the same size.
You measure three segments of the distance between a diffraction slit an the screen on which the pattern forms: x1 = (15.8 ± 0.2) cm, x2 = (6.7 ± 0.1) cm, and x3 = (11.3 ± 0.1). What is the uncertainty of the total distance x1 + x2 + x3? Group of answer choices 0.4 cm 0.5 cm 0.2 cm 0.3 cm 0.1 cm
The pupil of an eagle's eye has a diameter of 6.0 mm. Two field mice are separated by 0.010 m. From a distance of 201 m, the eagle sees them as one unresolved object and dives toward them at a speed of 16 m/s. Assume that the eagle's eye detects light that has a wavelength of 550 nm in vacuum. How much time passes until the eagle sees the mice as separate objects? t = i
A blackbody radiator in the shape of a sphere has a surface area of 152 If it has a temperature of 1200 K how much energy does it emit per second? If the sun emits light with a peak wavelength of 500 nm. What is the temperature of the sun? Two slits, 0.5 mm apart, are placed at a distance of 1.5 meters from a screen. Light of 300 nm illuminates the two slits and an interference pattern is observed on the screen. What is the distance between the central bright spot and the first bright spot on either side?
Consider a laser light illuminating a vertical thin film of polystyrene (n=1.55) of thickness t= 85 nm The thin film is surrounded by air. What should the wavelength of the laser be to observe a bright interference O lambda=403 nm O lambda=527 nm lambda=566 nm lambda= 75 nm lambda=371 nm
Laser light at 600 nm falls on a double-slit apparatus with slit separation 6 μm. Find the separation between the following fringes as seen on a screen 1 m from the slits. (a) The first and second bright fringes. (b) The third and fourth bright fringes.
If an X-ray beam of wavelength 1.4*10-10 m makes an angle of 20 degrees with a set of planes in a crystal causing first order constructive inference, at what angle will the second order line appear? A) 40 degrees B) 20 degrees C) 43 degrees D) 4.0 degrees E) 11 degrees
Jill is helping her younger brother Nathan set up an exhibit for a Science Fair. Nathan’s exhibit pertains to the wave-particle nature of light waves. He wishes to demonstrate the wave nature of light by displaying the two point interference pattern of red laser light (λ = 648 nm). Nathan has purchased a double slit slide from a science warehouse which has slits separated a distance of 0.125 mm. Nathan has asked Jill to determine the slide-to-screen distance which will result in a 2.0 cm separation between adjacent bright spots. What distance will result in this antinodal spacing?
9. Consider TE oblique incidence with 30 degree incidence angle from the air (n=1) to the semiconduc tor (n=3.5). The optical wavelength is 1.5 µm. We want to coat a thin film on the semiconductor to achieve zero reflection for this particular case. The coating material is with the refractive index n and the thickness d. (1) What is the power reflectivity of the interface without the coating. (2) Please determine the required d and n to achieve zero reflectivity.