The nuclear cross-section is measured in barn, it is equal to
The nuclear cross-section is measured in barn, it is equal to
${10^{ - 20}}\,{m^2}$
${10^{ - 30}}\,{m^2}$
${10^{ - 28}}\,{m^2}$
${10^{ - 14}}\,{m^2}$
The nuclear cross-section is measured in barn, it is equal to
Barn is the unit used to measure the very small area.
$1 \text { Barn }=10^{-28}\, m ^2$