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please give me the answer of sources of error in person perception
Personal errors natural errors instrumental errors
Calibration error (the equipment gives the incorrect result) and false assumptions (the sample is uniform and solid).
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The reaction may have not been complete yet, therefore resulting in a higher percent yield than 100%
the reading on a colorimeter, abit obvious :S
What is technical difference between colorimeter and turbiditymeter
Photoelectric colorimeter is a medical term. Essentially, it is referring to a colorimeter using a photoelectric cell and appropriate filters instead of the eye.
A Colorimeter can measure the absorbency of light waves. The Colorimeter has a set of changeable filters that can show which color of light to examine for greatest accuracy.
What are the sources of error in a solubility lab containing potassium crystal
A colorimeter is used to measure the intensity of color. The colorimeter would detect an intensity of a blue green color. When alcohol that is present increases.
we can use colorimeter for quantitative analysis of a specific substance which absorb light in the visible region.
By colour base
It is not something that was discovered, it was invented. One of the most popular designs is the Duboscq colorimeter which was invented by Jules Duboscq in 1870.
A colorimeter is simply a sensor of color. The instrument is normally labelled clearly for easy use by new users.
Typically a colorimeter has three filters. However, this can change depending on the company and type of colorimeter. For example our Gamma Scientific tri-stimulus colorimeter uses four extremely stable colored glass filters in conjunction with high quality silicon photodiodes for increased accuracy. This is done to more accurately match the CIE standard observer functions. These resources may be helpful if you have further colorimeter questions:
parallax error - reading of volume of burette