Extent of injury due to bullet is directly proportional to: (AIIMS May 2011)
Explanation:The wounding power or extent of injury due to a bullet is directly proportional to its mass, multiplied by the square of its velocity. i.e.
a. Another factor is the density of the tissue, e.g. destruction is greater in dense tissue such as bone than in soft tissues.
b. A bullet traveling at a high velocity produces a clean, circular, punched-out aperture or slit and usually perforates the body.
c. A bullet of low velocity causes contusion and laceration of the margins. It is easily deviated and deformed by striking some hard object, and often lodges in the body.
d. Large bullets cause greater damage than small ones.
e. Round bullets produce larger wounds than conical ones.