JEE Main & Advanced
Sample Paper
JEE Main - Mock Test - 27
question_answer
There is a stream of neutrons with a kinetic energy of 0.0327 eV. If the half-life period of neutrons is 700 s, the fraction of neutrons decay before they travel a distance of 5 m is \[x\times {{10}^{-8}}\]. The value of x is _____.