Q. Transmittance is given as T = P/P₀. If P₀ is the power incident on the sample, what does P represent?

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Q. What is the unit of absorbance which can be derived from Beer Lambert’s law?

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Q. What is the unit of molar absorptivity or absorptivity which is used to determine absorbance A in Beer Lambert’s formula?

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Q. Which of the following detectors does not require a battery and is also known as barrier layer cell?

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Q. Which of the following detectors is used to detect light intensities which are very weak?

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Q. How is Tungsten Halogen lamp differs from normal Tungsten filament lamp used in absorption spectroscopy?

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Q. Instead of glass filters, why gelatin filters could not be used for a long period while both are Absorption filters?

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Q. How does continuous wedge filter differ from normal interference filter used in absorption spectroscopy?

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Q. Which of the following could be used as the layer of dielectric in interference filters used in Absorption Spectroscopy?

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Q. How can stability of radiation be achieved in incandescent or discharge source used in Absorption Spectroscopy?

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Q. To tolerate high operating temperatures, which of the following has to be done in incandescent or tungsten filament lamps?

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Q. Which of the following is not a reason for laser not being generally used as a source of radiation for UV, Visible Spectroscopy?

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Q. Which of the following statements is false about single beam absorption instruments?

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Q. Which of the following statement is false about double beam absorption instruments?

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Q. Which of the following is not an application of colorimeter?

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Q. In photometers, the readings of the specimen are initially obtained in the form of which of the following parameters?

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Q. Colorimeters are used in applications where great accuracy is required.

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Q. Colorimeters are used to determine the concentration of solutions.

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Q. Which of the following is the purpose of balance indicator in double beam photometer or colorimeter?

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Q. Which of the following is the purpose of the beam splitter in double beam photometer or colorimeter?

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