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Faster than light!

Why the speed of sound in a perfectly rigid rod is infinite?

Note by Millon Das
8 months, 3 weeks ago

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speed of sound in a perfectly rigid rod is equal to that of light. Adyasha Jena · 7 months, 2 weeks ago

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@Adyasha Jena how is it so? Chinmayee Behera · 7 months, 2 weeks ago

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@Chinmayee Behera Simply a rigid body transmits information instantenously, even much faster than the speed of light......but according to theory of relativity perfectly rigid bodies do not exist.... in case of sound more rigid the body is more will be the speed of sound in it.......long before a material is perfectly rigid though , the speed of sound begins to approach the speed of light ...but it takes something to get there...one of the stiffest mediums would be a free scalar field, where speed of sound equals to speed of light...and it cant go beyond it............... Adyasha Jena · 7 months, 2 weeks ago

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@Adyasha Jena nice explanation.thanks! Chinmayee Behera · 7 months, 2 weeks ago

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@Chinmayee Behera WELCOME .....Glad that you have understood Adyasha Jena · 7 months, 2 weeks ago

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Because the particles oscillates at a very high speed nearly infinite Madhulika Malhotra · 8 months, 2 weeks ago

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@Madhulika Malhotra But how can anything travel faster than light. Millon Das · 8 months, 2 weeks ago

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