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What else can I help you with?
How can ultraviolet waves be helpful to humans?
UV light, when the body is over-exposed, can cause skin cancer, premature skin aging, eye damage and problems with the immune system. That is why it is important to apply sunscreen when you are out for a sun tan. It can also be helpful to have a UV monitor to measure the current intensity of the UV radiation from the sun as it can then let you know how long you should stay unsheltered in the sun.
What is the order of the wavelengths?
Of electromagnetic waves:long wavelength... to...--------------------------------------------Short wavelengthRadio microwaves Infrared visible-light ultraviolet X-rays GAMMA RAYS
Why aren't ultraviolet waves not used to transmit signals to and from communication satellites?
Because they are of the highest frequencies in the known electromagnetic spectrum. This means their wavelength are very short, which means they will not travel very far, as opposed to low-frequency RF waves. In comparison, the same idea applies to vehicle taillights and why they're colored red (the color red has the longest wavelength in visible light and it will be visible even from a long distance).
As you go from left to right across the spectrum what happens to the frequency and energy of the waves?
As you go farther right down the spectrum (radio waves, microwaves, infrared waves, visible light, ultraviolet light, x-rays, and gamma rays), the waves' wavelengths decrease as their frequencies decrease. For example, x-rays have a shorter wavelength and higher frequency than ultraviolet light. Radio waves on the left end have the longest wavelength and shortest frequency, while gamma rays on the right end have the shortest wavelength and highest frequency.
How is infrared light different from red light?
NO, THE FREQUENCY OF INFRARED LIGHT IS TOO SLOW (WITH CONCOMITANT LONG WAVE LENGTHS) TO EXCITE THE NERVES IN THE RETINAS OF THE EYES. INFRARED RADIATION IS ONE FORM OF ENERGY FROM THE SUN THAT IS ABSORBED BY THE WHOLE BODY. No, heat doesn't appear red to the naked human eye, because infrared light isn't in the visible spectrum of colors that humans can see. Heat's wavelengths are too short for the naked eye to detect, just like ultraviolet's wavelengths are too long for the nake eye to also detect. However, your skin can detect infrared light and respond to it by sweating when it's absorbing too much heat.
How long does it take for alcohol to effectively kill bacteria?
Alcohol can effectively kill bacteria within 30 seconds to 5 minutes of contact.
How long does it take for boiling water to effectively kill bacteria?
Boiling water for at least 1 minute can effectively kill most bacteria.
How long should water be boiled to effectively kill bacteria?
Water should be boiled for at least one minute to effectively kill bacteria.
How long should water boil to effectively kill bacteria?
Water should be boiled for at least one minute to effectively kill bacteria.
Do ultraviolet rays have short or long wavelengths?
Ultraviolet rays have short wavelengths compared to visible light, ranging from about 10 to 400 nanometers.
How long does it take for hydrogen peroxide to effectively kill bacteria?
Hydrogen peroxide can effectively kill bacteria within 10 to 30 minutes of contact.
How long does water need to boil in order to effectively kill bacteria?
Water needs to boil for at least one minute to effectively kill bacteria.
How can alcohol chemically fix bacteria?
as long as the alcohol is a high dosage it should kill all the bacteria
Does ultraviolet light have long or short wavelengths?
The wavelengths for UV light are shorter than for visible light, but much longer than for x-rays or gamma rays.
How long should you boil equipment in water to effectively kill most bacteria?
Boiling equipment in water for at least 10 minutes can effectively kill most bacteria.
What a parasite?
bacteria or medicanse can kill them or leaveing their host for to long with out finding a new one
How long does something have to soak in alcohol to kill bacteria?
Approximately 14% alcohol will kill most wine yeast.
