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A 100-MeV electron, for which v = 0.999987c, moves along the axis of an evacuated tube that has a length of 2.86 m as measured by a laboratory observer S with respect to whom the tube is at rest. An observer S' moving with the electron, however, would see this tube moving past with speed v. What length would this observer measure for the tube?

A 100-MeV electron, for which v = 0.999987c, moves along the axis of an evacuated tube that has a length of 2.86 m as measured by a laboratory observer S with respect to whom the tube is at rest. An observer S' moving with the electron, however, would see this tube moving past with speed v. What length would this observer measure for the tube?

Grade:10

1 Answers

Jitender Pal
askIITians Faculty 365 Points
8 years ago
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