Because such radiation expands as it passes through space, and as its energy is conserved (in vacuum), the intensity of all types of radiation from a point source follows an inverse-square law in relation to the distance from its source.
The intensity of all types of radiation from a point source follows an inverse-square law in relation to the distance from its source. Because such radiation expands as it passes through space, and as its energy is conserved (in vacuum).
Because such radiation expands as it passes through space, and as its energy is conserved (in vacuum). The intensity of all types of radiation from a point source follows an inverse-square law in relation to the distance from its source.
Because such radiation expands as it passes through space, and as its energy is conserved (in vacuum). The intensity of all types of radiation from a point source follows an inverse-square law in relation to the distance from its source.