point of burst मीनिंग इन हिंदी

Fragmenting munitions are indiscriminate and potentially lethal in all directions around the point of burst although the pattern and extent of the lethal area depends on several variable factors, some specific to each situation.
The intensity of initial nuclear radiation decreases rapidly with distance from the point of burst because the radiation spreads over a larger area as it travels away from the explosion ( the inverse-square law ).
As the purplish light turned to magenta and began to fade at the point of burst, a bright red glow began to develop on the horizon at a direction 50 degrees north of east and simultaneously 50 degrees south of east expanding inward and upward until the whole eastern sky was a dull burning red semicircle 100 degrees north to south and halfway to the zenith obliterating some of the lesser stars.