The branch of physics that deals with the investigation of intensities and wavelengths of electromagnetic radiations emitted or absorbed by atoms is called:
Correct answer: B. Spectroscopy
- A. Optical physics
- B. Spectroscopy
- C. Atomic physics
- D. None of the above
Explanation
Spectroscopy is the branch of science devoted to discovering the chemical composition of materials by looking at the light (and other kinds of electromagnetic radiation) they emit.Optical Physics is a branch of physics that deals with the determination of behavior and the properties of light, along with its interactions with matter.Atomic physics is the scientific study of the structure of the atom, its energy states, and its interactions with other particles and with electric and magnetic fields.
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About Atomic Spectra
Atoms emit or absorb light at specific wavelengths because electrons occupy quantized energy levels and change levels by absorbing or releasing photons. The topic covers emission and absorption spectra, spectral series, hydrogen’s line spectrum, energy-level transitions, and the relation between wavelength, frequency and photon energy.
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