A free atom of iron emits `K_alpha` X-rays of energy 6*4 keV. Calculate the recoil kinetic
Channel: Doubtnut
Date: 2020-07-05

A free atom of iron emits `K_alpha` X-rays of energy 6*4 keV. Calculate the recoil kinetic energy of the atom. Mass of and iron atom `= 9*3 xx 10 ^(-26) kg`.