A laser beam of wavelength l = 632.8 nm shines at normal incidence on the reflective side of a compact disc. (a) The tracks of tiny pits in which information is coded onto the CD are 1.60 mm apart. For what angles of reflection (measured from the normal) will the intensity of light be maximum? (b) On a DVD, the tracks are only 0.740 mm apart. Repeat the calculation of part (a) for the DVD

A laser beam of wavelength l = 632.8 nm shines at normal incidence on the reflective side of a compact disc. (a) The tracks of tiny pits in which information is coded onto the CD are 1.60 mm apart. For what angles of reflection (measured from the normal) will the intensity of light be maximum? (b) On a DVD, the tracks are only 0.740 mm apart. Repeat the calculation of part (a) for the DVD

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter38: Refraction And Images Formed By Refraction

Section: Chapter Questions

Problem 127PQ: Light enters a prism of crown glass and refracts at an angle of 5.00 with respect to the normal at...

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A beam of 580-nm light passes through two closely spaced glass plates at close to normal incidence as shown in Figure P27.23. For what minimum nonzero value of the plate separation d is the transmitted light bright?
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Astronomers observe the chromosphere of the Sun with a filter that passes the red hydrogen spectral line of wavelength 656.3 nm, called the H line. The filter consists of a transparent dielectric of thickness d held between two partially aluminized glass plates. The filter is held at a constant temperature. (a) Find the minimum value of d that produces maximum transmission of perpendicular H light if the dielectric has an index of refraction of 1.378. (b) What If? If the temperature of the filter increases above the normal value, increasing its thickness, what happens to the transmitted wavelength? (c) The dielectric will also pass what near-visible wavelength? One of the glass plates is colored red to absorb this light.
Light enters a prism of crown glass and refracts at an angle of 5.00 with respect to the normal at the interface. The crown glass has a mean index of refraction of 1.51. It is combined with one flint glass prism (n = 1.65) to produce no net deviation. a. Find the apex angle of the flint glass. b. Assume the index of refraction for violet light (v = 430 nm) is nv = 1.528 and the index of refraction for red light (r = 768 nm) is nr = 1.511 for crown glass. For flint glass using the same wavelengths, nv = 1.665 and nr = 1.645. Find the net dispersion.
Starting from a point A, a light wave travels 30 mm in air, then 10 mm in water of refractive index nW=1.33 , followed by 10 mm in glass of refractive index nG=1.60 , then a further 20mm in air to point B. The optical path length from A to B is: (give your answer in mm to 1 d.p.)
Light of wavelength 700.0 nm is sent along a route of length 2000 nm.The route is then filled with a medium having an index of refraction of 1.400. In degrees, by how much does the medium phase-shift the light? Give (a) the full shift and (b) the equivalent shift that has a value less than 360°.
The light from a krypton laser has a wavelength of 647.1 nm in air. As the light travels from air into acrylic glass (n =1.491), calculate (a) its speed in acrylic glass, (b) its wavelength in acrylic glass, (c) its critical angle in acrylic glass surrounded by air, and (d) its frequency.
If a smooth plane wave with a frequency of 100 MHz comes from the air medium to a dielectric medium with a lossless dielectric constant of 3.2 with an incidence angle of 57.121°, what is the refraction (conduction) angle?( NEED NEAT HANDWRITTEN SOLUTION ONLY OTHERWISE DOWNVOTE). A)42 B)24 C)36 D)18 E)28
A beam of initially unpolarized light of intensity 569 W/m^2 passes through two polarizing filters in sequence, emerging from the second filter with an intensity of 108 W/m^2. What is the angle between the axes of the first and second filters?
A beam of light with wavelength 440 nm in air hits a thin piece of glass 10.28 microns thick (with refractive index 1.55) at an angle of 40.8 degrees to the normal. What is the path difference between the two reflections from the layers of the glass, in wavelengths? [Note to get the phase shift we multiply this number by 2π, but this is modulo 2π, i.e. any integer number of wavelengths are 2π phase shifts, equivalent to no phase shift... basically in terms of phase we only really need the non-integer part of your answer. Note also that for the phase shift we would need to add a π for the reflection off the glass-air interface.]
Both sides of a uniform film that has index of refraction n and thickness d are in contact with air. For normal incidence of light, an intensity minimum is observed in the reflected light at λ2 and an intensity maximum is observedat λ1, where λ1> λ2. (a) Assuming no intensity minima are observed between λ1 and λ2, find an expression for the integer m in as shown in terms of the wavelengths λ1 and λ2. (b) Assuming n = 1.40, λ1 = 500 nm, and λ2 = 370 nm, determine the best estimate for the thickness of the film.
Fig. 1 shows two light rays of wavelength 610 nm traveling from air through twodifferent media with refractive indices n1 = 1.5 and n2 = 1.6 and to air again. Assumingthat the two waves are initially out of phase by 180° and they become exactly in phase once they pass through the two media, determine (a)the smallest possible value of L. (b)the second smallest possible value of L.