The answer depends on what the question is about. Some possible valid questions concern the fraction of solar radiation which:
I suggest that you spend just a little bit of time considering your question before posting it.
There is no special name. The fraction of sunlight which is reflected will be different from the fraction of other light. The reflectivity of a surface varies with the wavelength of the incident light.
If you are given the "the total radiation" (e.g. 100 rads of radiation) and you are given another radiation level (e.g. 75 rads of radiation) and then you are asked: 'What is "the fraction of the total radiation?"', then you would answer "75/100".
It is the reflectivity of the surface. However, it is important to note that the reflected fraction depends on the wavelength of the incident light.
There is no particular term. This is because the reflectivity of a surface varies across the electromagnetic spectrum so a surface which reflects a large proportion of blue wavelengths in sunlight may or may not reflect a similar proportion of red wavelengths.
Every fraction is an equivalent fraction: each fraction in decimal form has an equivalent rational fraction as well as an equivalent percentage fraction.
reflected.
this question needs to be stated more precisely. The solar fraction is a measurement of usage of the solar thermal energy by the solar thermal system installed.
ground radiation
Heat from the sun is called Solar Radiation, so the answer is SOLAR RADIATION
Insolation is intercepted solar radiation.
There is no special name. The fraction of sunlight which is reflected will be different from the fraction of other light. The reflectivity of a surface varies with the wavelength of the incident light.
incoming solar radiation = insolation
Solar radiation is most intense at noon.
The plants absorbs the solar radiation and energy.
It increases the amount of solar radiation that is reflected into space
Ultraviolet radiation
Most of the solar radiation is absorbed when it reaches the surface of the earth. Some of the solar radiation is also absorbed in the atmosphere.