পারমাণবিক বিস্ফোরণের ফলে মূলত কোন তেজস্ক্রিয় রশ্মি নির্গত হয়?

Nuclear bombs release their energy in the form of a blast, a fireball, visible light and radioactive ionising rays. For a small bomb, 50% of its energy release comes from the blast, 35% through heat, and the remaining 15% in the form of radiation.

During the explosion and a few seconds after, the effects of neutrons and gamma rays, which are long range, is very intensive. Gamma radiation prevails for powerful bombs. Neutrons dominate the small bombs and neutron bombs.

Source:radioactivity.eu.com