A standing wave of light in glass (index of refraction = 1.5) is observed to have a %3D distance of 1.0 cm between successive nodes. What is the frequency of light in GHz, to the nearest GHz?
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- The index of refraction for water is about 43. What happens as a beam of light travels from air into water? (a) Its speed increases to 43c, and its frequency decreases. (b) Its speed decreases to 34c, and its wavelength decreases by a factor of 34. (c) Its speed decreases to 34c, and its wavelength increases by a factor of 43. (d) Its speed and frequency remain the same. (e) Its speed decreases to 34c, and its frequency increases.Two polarizing sheets P1 and P2 are placed together with their transmission axes oriented at an angle to each other. What is when only 25% of the maximum transmitted light intensity passes through them?If a ray of light transitions from air into glass and we assume air has an index of refraction of n1=1.0 and θ1 is the angle of incidence, what variable should the slope of a graph of sin(θ1) as a function of sin(θ2) correspond to?
- A ray of monochromatic light is traveling through air and is incident upon a block of transparent material with an index of refraction of 2.01. If the angle of incidence is 70.2 degrees with respect to the normal of the interface boundary, what is the angle of refraction in the transparent material?A ray of light is incident through glass, with refractive index 1.52, on an interface separating glass and water with refractive index 1.32. What is the angle of refraction if the angle of incidence of the ray in glass is 25 °?Light that is traveling in water (with an index of refraction of 1.33) is incident on a plate of glass (with index of refraction 1.53). At what angle of incidence does the reflected light end up fully polarized?
- Two light pulses travel side by side, one in a vacuum of refractive index 1.00000 and the other in air of refractive index 1.00029.Which pulse travels fastest? After moving 1 mi, how far ahead of the slower pulse is the fast pulse?When unpolarized light is incident on a sheet of polarizing material with a transmission axis orientedvertically, what percentage of the light is transmitted through the material?A plastic-coated window consists of Perspex and glass. At the Perspex to glass interface, the angle of refraction is 30.00degrees. and the angle of incidence is 20.00degrees. If the refractive index of the glass is 1.75, what is the refractive index of the Perspex?
- The index of refraction of a glass plate is 1.52. What is the Brewster’s angle when the plate is (a) in air and (b) in water?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.]A ray of white light traveling through air enters a triangular prism that has an index of refraction of 1.315 for the red end of the spectrum and 1.345 for the violet end and an apex angle of 72°. If the ray has an angle of incidence of 63° with respect to the normal of the interface boundary, what's the angular separation between the red and violet ends of the spectrum within the prism?