- #1
pardesi
- 339
- 0
What do we mean in mathematical terms intensity of light at this point is [tex]I[/tex] and when we say Power of light is [tex]P[/tex]
Intensity of light refers to the amount of energy carried by a light wave. It is measured in units of watts per square meter (W/m²).
Intensity of light is directly related to the brightness of a light source. This means that the higher the intensity, the brighter the light will appear.
The intensity of light can be affected by several factors, including the distance from the light source, the wavelength of the light, and the reflectivity of the surface it falls on.
Intensity of light can be measured using a device called a radiometer, which measures the amount of light energy absorbed by a surface. It can also be measured using a light meter, which measures the amount of light hitting a surface.
Understanding intensity of light is important in various fields, such as physics, astronomy, and photography. It helps us understand the behavior of light and how it interacts with different surfaces and objects, and can also be used to calculate the energy output of different light sources.