Question

Listen and give specific information on the terms given :


1. Spectroscopy

2. Raman effect

3. Raman scanner

4. Diffraction

5. Ultrasonic

6. Hypersonic frequency

7. Infra-red

8. Crystal dynamics

9. Iridescent substances

10. Diffraction​

Answer 1

Answer:

1. Spectroscopy is the branch of science concerned with the investigation and measurement of spectra produced when matter interacts with or emits electromagnetic radiation.

2.Raman effect is a change of wavelength exhibited by some of the radiation scattered in a medium. The effect is specific to the molecules which cause it, and so can be used in spectroscopic analysis.

3. diffraction is the bending of waves around the corners of an obstacle or through an aperture into the region of geometrical shadow of the obstacle/aperture.

5.Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing

6.The hypersonic frequency range corresponds to the frequencies of electromagnetic oscillations in the decimeter, centimeter, and millimeter ranges

7.Infrared radiation, that portion of the electromagnetic spectrum that extends from the long wavelength, or red, end of the visible-light range to the microwave range. Invisible to the eye, it can be detected as a sensation of warmth on the skin.

9.Iridescence is the phenomenon of certain surfaces that appear to gradually change color as the angle of view or the angle of illumination changes.