When a photon is emitted, it starts out in a random direction, and the upward collective progress of photons trapped in the radiation zone is thus very slow; it takes 170, 000 years for energy emitted by the core to work its way up to a level where it can escape the Sun.
32.
If the aircraft carrying the Hiroshima and Nagasaki bombs had been within the intense nuclear radiation zone when the bombs exploded over those cities, then they would have suffered effects from the charge separation ( radial ) EMP . But this only occurs within the severe blast radius for detonations below about 10 km altitude.
