laboratory instrument

An optical instrument, which is used for observing pure spectra of sources of light in the laboratory..

Compound Microscope - A compound microscope is an optical instrument which is used to magnify very small objects like blood cells, bacteria which otherwise cannot be seen with the naked eye. A Laboratory Model of Compound Microscope The essential parts of a compound microscope a..

Spectrometer - An optical instrument, which is used for observing pure spectra of sources of light in the laboratory. Main parts of the spectrometer are: 1) Collimator 2) Prism table 3) Telesco..

Physical Quantities and their Measurement - The development of chemistry is based upon the systematic approach of the scientists in carrying out different experiments. Scientific theories, inferences and generalizations are made on the observations recorded. The quantitative information involves th..

Compound Microscope - A Laboratory Model of Compound Microscope It is an optical instrument used for observing highly magnified images of tiny object..

. It is measured in lumen /watt. Laws of photometry state that E a I; E a cos q , where q is the angle, which the incident light makes with normal to the surface at that point. Or A photometer is an instrument, which is used for comparing the illuminating powers of two sources of light. W..