A Meson When at Rest Decays 2 $\mu$ S After It Is Created

question 52

Multiple Choice

A meson when at rest decays 2 $\mu$ s after it is created.If moving in the laboratory at 0.99c, its lifetime according to laboratory clocks would be:

• A)the same
• B)0.28\(\mu\)s
• C)4.6 \(\mu\)s
• D)14\(\mu\)s
• E)none of these

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