Which of the following statements is NOT true regarding the infrared radiation?
[amp_mcq option1=”It is electromagnetic in nature” option2=”Its wavelength is larger than that of the visible light” option3=”It can travel through vacuum” option4=”It is a longitudinal wave” correct=”option4″]
This question was previously asked in
UPSC Geoscientist – 2020
The statement that is NOT true regarding infrared radiation is that it is a longitudinal wave. Infrared radiation is a part of the electromagnetic spectrum. All electromagnetic waves, including visible light, radio waves, UV rays, X-rays, gamma rays, and infrared radiation, are transverse waves. In transverse waves, the oscillations (of electric and magnetic fields) are perpendicular to the direction of wave propagation. Longitudinal waves, such as sound waves in air, involve oscillations parallel to the direction of propagation.
Electromagnetic waves are transverse waves.