When the distance between two points is doubled, the intensity of light is reduced by one-fourth.
Geometrical characteristics of the LASER are:
a) unidirectional
b) monochromatic
c) coherent light
When the distance between two points is doubled, the intensity of light is reduced by one-fourth.
Geometrical characteristics of the LASER are:
a) unidirectional
b) monochromatic
c) coherent light