Ultraviolet Waves Flashcards
Ultraviolet Radiation is part of the ___________ Spectrum.
Electromagnetic Spectrum
Ultraviolet rays oscillate at a frequency ranging between ____ tetrahertz and
____ petahertz
800 terahertz
30 petahertz
UV rays that Reaches the earth’s surface (320-400 nm)
UV-A
UV rays that is Completely absorbed by the earth’s atmosphere (100-280 nm)
UV-C
UV rays that is Mostly absorbed by the earth’s atmosphere (280-320 nm)
UV-B
He conducted an experiment to investigate the existence of energy beyond the violet end of the visible spectrum.
Johann Wilhelm Ritter
How can you protect yourself from UV radiation?
Sunscreen, Protective clothes, Avoid artificial UV rays
Where is UV Radiation emitted from?
UV Radiation is naturally emitted from the sun due to its intense heat and energy.
In the Electromagnetic spectrum where are UV rays located?
UV waves lies between visible light and X-rays on the electromagnetic spectrum
He lived from 16 December 1776 – 23 January 1810
Johann Wilhelm Ritter
Why is UV light a valuable tool in the medical field?
UV light is effective at killing bacteria, viruses, and other microorganisms, making it a valuable tool for disinfection.
How did the discovery of UV wave help in then invention of sunscreen.
In the past century, the harmful effects of UV radiation on human skin became increasingly understood.
What are the possible future advancements of UV’s?
Ongoing research may uncover new therapeutic uses for UV radiation, such as targeted cancer treatments or novel approaches to combating infectious diseases.
What are uv rays??
UV waves are a form of electromagnetic radiation that lies
between visible light and X-rays on the electromagnetic spectrum
What are the different types of UV rays?
UV-A, UV-B, UV-C
What is UV index?
measure of the strength of UV radiation from the sun at a particular place and time.
What are the health effects of UV exposure?
UV exposure can have both short-term and long-term health effects that are harmful.
How can I protect myself from UV radiation?
Sunscreen
Protective clothes
Avoid artificial UV rays
Where can we find UV waves?
It is naturally emitted from the sun,
Artificially emitted from tanning beds, Welding, UV lamps, mosquito killer(kato electric)
How were UV waves discovered?
Johann Wilhelm Ritter conducted an experiment to investigate the existence of energy beyond the violet end of the visible spectrum. Knowing that photographic paper would turn black more rapidly in blue light than in red light, he exposed the paper to light beyond violet. Sure enough, the paper turned black, proving the existence of ultraviolet light.
