Is visible spectra used fir finding out the reflectance, absorbance and transmitance of insident light beam?

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Shrikaant Kulkarni

Only visible light is used in colorimetry. You can measure absorbance and transmittance then. Calorimeter normally doesn't provide for reflectance measurement as it has to have attachment to quantitatively measure reflected radiation if any.

V R Arun Prakash

Dear sir

Then by what method i can check the light characteristics for my polymer thin film.

Thanks in advance

What characteristics you are testing for?

Visible light transmitance, absorbance and reflectance when visible light passes a polymer thin film