Which one of the following statements with regard to the ultraviolet light is not correct?
It is an electromagnetic wave.
It can travel through vacuum.
It is a longitudinal wave.
Its wavelength is shorter/smaller than that of visible light.
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CDS-2 – 2020
Ultraviolet (UV) light is a form of electromagnetic radiation, just like visible light, radio waves, and X-rays. All electromagnetic waves are transverse waves, meaning their oscillations are perpendicular to the direction of energy transfer (propagation). They can travel through vacuum at the speed of light. Longitudinal waves, such as sound waves, involve oscillations parallel to the direction of propagation and require a medium to travel. UV light has a shorter wavelength than visible light but a longer wavelength than X-rays and gamma rays.