Lorentz Transformation Equations Multiple Questions and Answers.




6.How fast does a rocket have to move relative to an observer for its length to be contracted to 95% of its original length?
A. 0.5 c
B. 0.4 c
C. 0.3 c
D. 0.2 c

7.A rod of length 1m moves with a speed of 0.5 c. How much length contraction takes place?
A. 50 %
B. 14 %
C. 10 %
D. 35 %

8.A particle with a lifetime of 2 X 10-6 s moves through the laboratory with a speed of 0.9 c. It’s lifetime, as measured by an observer in the laboratory, is?
A. 2 X 10-6 s
B. 3.2 X 10-6 s
C. 4.6 X 10-6 s
D. 5.4 X 10-6 s

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