Explanation Given: The wavelength is found to be 0.50% longer than the wavelength emitted. Formula used: The observed wavelength of a lightwave when, Source is receding is λ − = 1 + v s c 1 − v s c λ 0 Where, v s - Speed of source λ 0 - Wavelength emitted by the source c - Speed of light = 3 × 10 8 m/s Calculation: The Doppler effect for the light of a receding source yields an increased wavelength. Since the wavelength of light from a distant galaxy is found 0.50 % longer, hence the galaxy is receding from the earth. The observed wavelength of a light wave when the source is receding is λ − = 1 + v s c 1 − v s c λ 0 The wavelength is found to be 0.50 % longer than the wavelength emitted. 0.50 % = 0.005 λ − = 1.005 λ 0 1.005 λ 0 = 1 + v s c 1 − v s c λ 0 1.005 = 1 + v s c 1 − v s c ( 1

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

4th Edition

ISBN: 9780133942651

Author: Randall D. Knight (Professor Emeritus)

Publisher: PEARSON

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Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there w…

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Chapter 16, Problem 79EAP

To determine

The galaxy approaching or receding from the earth and the speed.

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Chapter 16, Problem 78EAP

Chapter 16, Problem 80EAP

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Ch. 16 - Prob. 1CQ Ch. 16 - A wave pulse trath along a stretched string at a...Ch. 16 - FIGURE Q16.3 is a history graph showing the...Ch. 16 - FIGURE Q16.4 shows a snapshot graph and a history...Ch. 16 - Rank in order, from largest to smallest, the...Ch. 16 - A sound wave with wavelength ?0 and frequency...Ch. 16 - Prob. 7CQ Ch. 16 - FIGURE Q16.8 is a snapshot graph of a sinusoidal...Ch. 16 - FIGURE Q16.9 shows the wave fronts of a circular...Ch. 16 - Prob. 10CQ

Ch. 16 - One physics professor talking produces a sound...Ch. 16 - You are standing at x = 0 m, listening to a sound...Ch. 16 - The wave speed on a string under tension is 200...Ch. 16 - The wave speed on a string is 150 m/s when the...Ch. 16 - A 25 g string is under 20 N of tension. A pulse...Ch. 16 - Draw the history graph D(x = 4.0 m, t ) at x = 4.0...Ch. 16 - Prob. 5EAP Ch. 16 - Draw the snapshot graph D (x, t = 0 s) at t = 0 s...Ch. 16 - Prob. 7EAP Ch. 16 - Prob. 8EAP Ch. 16 - Prob. 9EAP Ch. 16 - A wave has angular frequency 30 rad/s and...Ch. 16 - A wave travels with speed 200 m/s. Its wave number...Ch. 16 - Prob. 12EAP Ch. 16 - The displacement of a wave traveling in thee...Ch. 16 - What are the amplitude, frequency and wavelength...Ch. 16 - 15. Show that the displacement D(x, t) cx2 + dt2,...Ch. 16 - Show that the displacement D(x, t) = ln(ax + bt),...Ch. 16 - a. What is the wavelength of a 2.0 MHz ultrasound...Ch. 16 - Prob. 18EAP Ch. 16 - Prob. 19EAP Ch. 16 - Prob. 20EAP Ch. 16 - Prob. 21EAP Ch. 16 - Prob. 22EAP Ch. 16 - 23. Cell phone conversations are transmitted by...Ch. 16 - a. How long does it take light to travel through a...Ch. 16 - A light wave has a 670 nm wavelength in air. Its...Ch. 16 - Prob. 26EAP Ch. 16 - Prob. 27EAP Ch. 16 - Prob. 28EAP Ch. 16 - Prob. 29EAP Ch. 16 - Prob. 30EAP Ch. 16 - Prob. 31EAP Ch. 16 - Prob. 32EAP Ch. 16 - A sound wave with intensity 2.0 × l0-3 W/m2 is...Ch. 16 - Prob. 34EAP Ch. 16 - Prob. 35EAP Ch. 16 - During takeoff, the sound intensity level of a jet...Ch. 16 - 37. The sun emits electromagnetic waves with a...Ch. 16 - What are the sound intensity levels for sound...Ch. 16 - Prob. 39EAP Ch. 16 - Prob. 40EAP Ch. 16 - Prob. 41EAP Ch. 16 - Prob. 42EAP Ch. 16 - A bat locates insects by emitting ultrasonic...Ch. 16 - Prob. 44EAP Ch. 16 - 45. I FIGURE P16.45 is a history graph at x = 0 m...Ch. 16 - . I FIGURE P16.46 is a snapshot graph at t=0sof a...Ch. 16 - Prob. 47EAP Ch. 16 - Prob. 48EAP Ch. 16 - Prob. 49EAP Ch. 16 - A helium-neon laser beam has a wavelength in air...Ch. 16 - Earthquakes are essentially sound waves—called...Ch. 16 - Helium (density 0.18k/m ’ at 0C and 1 atm...Ch. 16 - Prob. 53EAP Ch. 16 - 54. A sound wave is described by ,where y is in m...Ch. 16 - A wave on a string is described by...Ch. 16 - Prob. 56EAP Ch. 16 - Prob. 57EAP Ch. 16 - Prob. 58EAP Ch. 16 - Prob. 59EAP Ch. 16 - The string in FIGURE P16.60 has linear density ....Ch. 16 - A string that is under 50.0N of tension has linear...Ch. 16 - Prob. 62EAP Ch. 16 - A sinusoidal wave travels along a stretched...Ch. 16 - Prob. 64EAP Ch. 16 - Prob. 65EAP Ch. 16 - An AM radio station broadcasts with a power of...Ch. 16 - Prob. 67EAP Ch. 16 - The sound intensity 50m from a wailing tornado...Ch. 16 - Prob. 69EAP Ch. 16 - 70. A compact sound source radiates of sound...Ch. 16 - Prob. 71EAP Ch. 16 - Prob. 72EAP Ch. 16 - Prob. 73EAP Ch. 16 - Prob. 74EAP Ch. 16 - Prob. 75EAP Ch. 16 - Prob. 76EAP Ch. 16 - Prob. 77EAP Ch. 16 - A starship approaches its home planet at a speed...Ch. 16 - Prob. 79EAP Ch. 16 - Prob. 80EAP Ch. 16 - Prob. 81EAP Ch. 16 - A roof mass m and length L hangs from a ceiling....Ch. 16 - A communications truck with a 44-cm-diameter dish...Ch. 16 - Prob. 84EAP Ch. 16 - A water wave is a shallow-water wave if the water...

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