For courses in health and physical education, expenses for supplies are qualified expenses only if related to athletics. This deduction is for expenses paid or incurred during the tax year. You claim the deduction on line 23 of Form 1040 (PDF) or line 16 of Form 1040A (PDF).
In astronomy, the term spectrophotometry refers to the measurement of the spectrum of a celestial object in which the flux scale of the spectrum is calibrated as a function of wavelength, usually by comparison with an observation of a spectrophotometric standard star, and corrected for the absorption of light by the Earth's atmosphere.
Spectrophotometers. Spectrophotometers measure light intensity as a function of wavelength and are commonly used to measure the concentration of a compound in an aqueous solution.Depending on the type of spectrophotometer, different wavelengths of light can be analyzed.UV-Vis spectrophotometers (ultraviolet visible) measure in the UV and visible regions of the electromagnetic spectrum (190 to 380 nm and 380 to 760 nm, respectively).epending on the type of spectrophotometer, different wavelengths of light can be analyzed. UV-Vis spectrophotometers (ultraviolet visible) measure in the UV and visible regions of the electromagnetic spectrum (190 to 380 nm and 380 to 760 nm, respectively).