radiation

Methods of Heat Transmission

by

Heat energy can be transmitted from one point (or place) to another point (or place) by three different methods. The following are the methods of transmission of heat: conduction, convection and radiation. A) Conduction The process in which heat is transformed from one point to another point in a body by handing over from one … Read more

Characteristics of α-radiation, β-radiation and γ-radiation

by

A) α-radiation The α-rays are not rays, but consist of a stream of positively charged particles, having 2 units of positive (+) charge, and 4 units of mass. Thus, α-particles are doubly ionized helium atoms i.e., He2+. The α-particles emitted by any radioactive source are shot out with high velocity. The initial velocity depends on … Read more