The light clock in the spaceship in Figure 1-25 uses a light pulse moving up the y

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The light clock in the spaceship in Figure 1-25 uses a light pulse moving up the y axis to reflect back from a mirror as the ship moves along the x axis. Suppose instead the light pulse moves along the x' axis between x' = 0 and a mirror at x' = L. 

(a) What is the time required for the pulse to make a round trip in the rest system of the spaceship? 

(b) What is the round-trip time in the laboratory frame? 

(c) Does the result in (b) agree with that expected from time dilation? Justify your answer.

Figure 1-25

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Modern Physics

ISBN: 9781429250788

6th Edition

Authors: Paul A. Tipler, Ralph Llewellyn

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