A certain type of laser emits light that has a frequency of 7.0 × 10¹4 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 4.1 × 10-¹1 s. (a) How many wavelengths are there in one pulse? (b) The light enters a pool of water. The frequency of the light remains the same, but the speed of the light slows down to 2.3 x 108 m/s. How many wavelengths are there now in one pulse?

A certain type of laser emits light that has a frequency of 7.0 × 10¹4 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 4.1 × 10-¹1 s. (a) How many wavelengths are there in one pulse? (b) The light enters a pool of water. The frequency of the light remains the same, but the speed of the light slows down to 2.3 x 108 m/s. How many wavelengths are there now in one pulse?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

A certain type of laser emits light that has a frequency of 7.0 × 10¹4 Hz. The light, however,
occurs as a series of short pulses, each lasting for a time of 4.1 × 10-¹¹ s. (a) How many
wavelengths are there in one pulse? (b) The light enters a pool of water. The frequency of the
light remains the same, but the speed of the light slows down to 2.3 x 108 m/s. How many
wavelengths are there now in one pulse?

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Step 5: Calculate the wavelength of the light that enters a pool

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