Answer Posted / alok shrivastava

if j=k=1 and Q=0 and after interval t output Q becomes zero
to one when we applied clock pulse with width t'.
then Q=1 and if j=k=1 then after another interval of t'
output will change .so output will oscillate back and forth
many times in clock interval..it is ambiguous .it is called
race aruond condition.it can be remove by master slave
flipflop or keep t>t'

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