Optics Question 304
Question: In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption
[SCRA 1994]
Options:
A) Ultraviolet radiation
B) Microwaves
C) Infrared radiation
D) Radio waves are a type of electromagnetic radiation with wavelengths longer than infrared light. They are used for various applications including radio broadcasting, satellite communication, and radar systems.
Show Answer
Answer:
Correct Answer: B
Solution:
Molecular spectra due to vibrational motion lie in the infrared region of EM-spectrum. Due to Kirchhoff’s law in spectroscopy the same will be absorbed.
BETA
