Assertion A: Spectroscopy technique is used for the study of interaction of electromagnetic radiation with matter.
Reason R: It is used for the identification of substances through the spectrum emitted or absorbed by them.
In the light of the above statements, choose the most appropriate answer from the options given below
Assertion A states that the Spectroscopy technique is used for the study of the interaction of electromagnetic radiation with matter. This is the fundamental definition of spectroscopy. Therefore, Assertion A is correct.
Reason R states that spectroscopy is used for the identification of substances through the spectrum emitted or absorbed by them. Analyzing the characteristic spectra (patterns of absorbed or emitted light) is a primary method for identifying unknown substances. Therefore, Reason R is also correct.
Spectroscopy involves studying how matter interacts with electromagnetic radiation (Assertion A). A key outcome and application of this study is analyzing the resulting spectra to identify the substance involved (Reason R). Thus, the ability to identify substances based on their spectra is a direct consequence and purpose of studying the interaction of electromagnetic radiation with matter.
Therefore, Reason R provides the correct explanation for Assertion A.
The most appropriate option is: Both A and R are correct and R is the correct explanation of A.
| LIST-I | LIST-II |
|---|---|
| A. Moss | I. Wolffia |
| B. Pteridophyte | II. Sequoia |
| C. Gymnosperm | III. Selaginella |
| D. Angiosperm | IV. Sphagnum |