In hundred meter race false start time is :

A ) 0.1 second ✅

B ) 0.25 second

C ) 0.75 second

D ) 1 second


Explanation: But there is also a rule that says it's a false start if a runner leaves within 0.1 seconds AFTER the gun sounds The idea being that nobody could possibly react that quickly to the gun. His reaction time was measured at 0.099 seconds.