Does the absorbance can exeed 1 in uv?

Yes, absorbance can exceed 1 in UV spectroscopy. When absorbance is greater than 1, it indicates that a substantial amount of light is being absorbed by the sample, potentially leading to inaccuracies in quantitative measurements. In such cases, the sample may need to be diluted to obtain reliable data within the linear range of the Beer-Lambert Law, which is typically between 0 and 1 absorbance units.