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en/14.2.11.md
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| + | ### Statement | ||
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| + | $14.2.11.$ [Insert the problem statement] | ||
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| + | ### Solution | ||
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| + | The obstruction of every point on the reduced cross-section of the light beam witnessed by the observer on the disk is simultaneous. However, this obstruction is not simultaneous in the laboratory frame for any two points with different $y$ coordinates. (By Lorentz transformation, if the difference of $y$ coordinates is $\Delta y$, then the time separation of the obstruction events is $v\Delta y/c^2$.) Consequently, points on the same wavefront parallel to the disk are not obstructed at the same time in the laboratory frame, and the paradox is resolved. | ||
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| + | #### Answer | ||
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| + | [Insert a concise answer or boxed result] | ||
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| ### Statement | |||
| $14.2.11.$ [Insert the problem statement] | |||
| ### Solution | |||
| The obstruction of every point on the reduced cross-section of the light beam witnessed by the observer on the disk is simultaneous. However, this obstruction is not simultaneous in the laboratory frame for any two points with different $y$ coordinates. (By Lorentz transformation, if the difference of $y$ coordinates is $\Delta y$, then the time separation of the obstruction events is $v\Delta y/c^2$.) Consequently, points on the same wavefront parallel to the disk are not obstructed at the same time in the laboratory frame, and the paradox is resolved. | |||
| #### Answer | |||
| [Insert a concise answer or boxed result] | |||