The wavelength of red helium-neon laser light in air is 632.8 nm. (a) What is its frequency? 4740000000000 Hz (b) What is its wavelength in glass that has an index of refraction of 1.60? 0.00000000395 X Does the velocity of light change when the light enters the glass? Does the frequency of the light wave change wh (c) What is its speed in the glass? Mm/s

The wavelength of red helium-neon laser light in air is 632.8 nm. (a) What is its frequency? 4740000000000 Hz (b) What is its wavelength in glass that has an index of refraction of 1.60? 0.00000000395 X Does the velocity of light change when the light enters the glass? Does the frequency of the light wave change wh (c) What is its speed in the glass? Mm/s

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter16: Waves

Section: Chapter Questions

Problem 119AP: The speed of light in air is approximately v=3.00108 m/s and the speed of light in glass is...

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The speed of light in air is approximately v=3.00108 m/s and the speed of light in glass is v=2.00108 m/s . A red laser with a wavelength of =633.00 nm shines light incident of the glass, and some of the red light is transmitted to the glass. The frequency of the light is the same for the air and the glass. (a) What is the frequency of the light? (b) What is the wavelength of the light in the glass?
Can a sound wave in air be polarized? Explain.
Three polarizing sheets are placed together such that the transmission axis of the second sheet is oriented at 25.0° to the axis of the first, whereas the transmission axis of the third sheet is oriented at 40.0° (in the same sense) to the axis of the first. What fraction of an intensity of an incident unpolarized beam is transmitted by the combination?
Two radio antennas separated by d = 3.00 102 cm. as shown in Figure P24.7, simultaneously broadcast identical signals at the same the signals. (a) If the car is at the position of the second maximum wavelength. A car travels due north along a straight line at position x = 1.00 103 m from the center point between the antennas and its radio receives the signal. (a) If the car is at the position of the second maximum after that at point O when it has traveled a distance of y = 4.00 102 m northward, what is the wavelength of the signals? (b) How much farther must the car travel from thus position to encounter the next minimum in reception? Hint: Do not use the small-angle approximation in this problem.
Components of some computers communicate with each other through optical fibers having an index of refraction n = 1.55. What time in nanoseconds is required for a signal to travel 0.200 m through such a fiber?
A physicist drives through a stop light. When he is pulled over, he tells the police officer that the Doppler shift made the red light of wavelength 650 nm appear green to him, with a wavelength of 520 nm. The police officer writes out a traffic citation for speeding. How fast was the physicist traveling, according to his own testimony?