what is uv light

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Description : Will the UV light from a bug zapper placed over my pond hurt the frogs' eyes?

Last Answer : No. The sun’s UV rays have never hurt frogs and I doubt the frogs would be staring directly at the UV light anyway…

Description : Any suggestions for a good UV/black light?

Last Answer : Just one thing – blacklight tends to make, er, protein stains show up. Bathroom not exactly the place to be proclaiming where someone marked their territory, if y’know what I mean.

Description : Is it possible to have a fabric that just allows UV light through ?

Last Answer : Yes. That material is called Transol. Here is a non-technical article about it. Here is where you can buy it.

Description : Are fish pond UV light ballasts typically somehow connected to the water pump?

Last Answer : They should be two totally unrelated things. Question about your pump. Is it an external or internal pump? If its external it could have been ruined in the same way the ballast was.

Description : Can a full spectrum light be substituted for a UV light?

Last Answer : I’m not certain, but I don’t think so. If you have a window that gets a lot of sunlight you can try leaving him (her) there while the sun is shining. Pet stores usually have UV lights that can clip onto things, too.

Description : Do I need special camera preparation or elements to shoot under UV light?

Last Answer : Shutter speed. Slowing the shutter speed will allow you to get the effect you're looking for since it's allowing more light to come in. What you'll want to do is turn off all source of light ... I do know of a a person on fluther that has some photography experience I'll recommend this thread to.

Description : How do you remove cum stains so that UV light won't show it?

Last Answer : I’ve tried many ways to do that haha. But I still haven’t been successful! The best thing I can think of is bleach, because washing it doesn’t seem to help!

Description : Do our eyelids block out UV light?

Last Answer : Well, I found an abstract of a study that measured UV and visible light transmission through eyelids. It found that while up to 77% of visible light is transmitted, negligible amounts of UV make it through (the URL is ... 't allow me to make a link out of it, but if you're interested I'll PM it).

Description : $ Ergosterol is a lipid that changes to vitamins D on activation by UV light. ! Iron is a biochemical compoent of haemoglobin.

Last Answer : $ Ergosterol is a lipid that changes to vitamins D on activation by UV light. ! Iron is a biochemical ... is wrong D. If both As and R are wrong.

Description : What color is the plant extract under UV light?

Last Answer : Need answer

Description : What is the temperature of a UV light?

Last Answer : the temperature of a UV light is 10nm-400 degrees fahrenheit

Description : How can uv light affect an organism's trait?

Last Answer : Feel Free to Answer

Description : Which one of the following is used for determining the structure of crystal - (1) Gamma rays (2) X-rays (3) UV rays (4) visible light

Last Answer : (2) X-rays Explanation: Crystallography is the science that examines crystals which can be found everywhere in nature, from salt to snowflakes to gemstones.

Description : The radiant energy having lowest energy is – (1) gamma rays (2) UV rays (3) visible light (4) microwave radiation

Last Answer : (4) microwave radiation Explanation: The parts of the electromagnetic spectrum, arranged from highest energy to lowest, are gamma rays, Xrays, Ultraviolet light, visible light, infrared light, microwaves, and radio waves.

Description : Which component of the protein absorb UV light at 280 nm?

Last Answer : Indole ring of tryptophan.

Description : UV light falls in the category of------? A. Ionizing Radiations (Answer) B. Non Ionizing Radiation C. Visible light D. None

Last Answer : A. Ionizing Radiations (Answer)

Description : In gel electrophoresis, separated DNA fragments can be visualized with the help of (a) acetocarmine in bright blue light (b) ethidium bromide in UV radiation (c) acetocarmine in UV radiation (d) ethidium bromide in infrared radiation.

Last Answer : (b) ethidium bromide in UV radiation

Description : Chlorobenzene can be prepared by treatment of aniline with (a) Cuprous chloride (b) Chlorine in the presence of UV light (c) Nitrous acid followed by treatment with CuCl (d) Chlorine in the presence of FeCl3

Last Answer : Nitrous acid followed by treatment with CuCl

Description : One indirect way to determine microbial growth is using a _____. a. UV light b. Spectrophotometer c. Light meter d. Radioactive counter

Last Answer : b. Spectrophotometer

Description : Toluene reacts with bromine in the presence of uv light to give (a) m-Bromotoluene (b) Benzyl bromide (c) o-Bromotoluene (d) Benzoyl bromide

Last Answer : Benzyl bromide

Description : Which of the following reagents will react with methyl group rather than the benzene ring in methylbenzene? (a) Chlorine in the presence of uv light (b) CH3Cl in the presence of AlCl3 (c) CH3COCl in the presence of AlCl3 (d) Hydrogen in the presence of nickel

Last Answer : Chlorine in the presence of uv light

Description : Which of the following is NOT a carcinogen? a. Genetic factors b. UV light c. Certain chemicals d. X rays

Last Answer : a. Genetic factors

Description : How many monochlorinated isomers would result from the reaction of chlorine with n-butane in the presence of UV light? (a) 2 (b) 4 (c) 6 (d) 8

Last Answer : 2

Description : Which of the following are examples of mutagens? a. detergent b. UV light c. fertilizer d. none of the above are correct

Last Answer : b. UV light

Description : Excision repair would correct DNA damage caused by a. Antibiotics. b. UV Light. c. A Chemical Mutagen. d. A Dna Replication Error.

Last Answer : b. UV Light.

Description : What needs to come into consideration when using UV light to sterilize? a. It Needs Direct Exposure b. It Can Cause Skin Cancer c. It May Not Be Effective Against All Kinds Of Endospores d. A-C Are Correct

Last Answer : d. A-C Are Correct

Description : Which of the following HPLC detectors is used as a bulk property or general purpose detector? A. Electrochemical detector B. Fluorescence detector C. UV-Visible detector D. Evaporative Light scattering detector

Last Answer : D. Evaporative Light scattering detector

Description : The radiant energy having lowest energy is (1) gamma rays (2) UV rays (3) visible light (4) microwave radiation

Last Answer : microwave radiation 

Description : Is the uv radiation from stars magnified enough to damage ones eyes when viewed from a telescope?

Last Answer : Well, omitting the sun I don’t think you will be able to damage your eyes looking at the night sky through a scope. There is just not enough light to concentrate.

Description : Is it necessary for sunglasses to have tinting to block all 100% UV rays, glare, and be polarized?

Last Answer : I think you’d get regular glasses like that. Sunglasses need to be tinted and break the light differently in order to serve their purpose. There is a type of regular spectacles that get tinted in bright light, but are otherwise clear. Is that what you refer to?

Description : Looking for a UV dye that was sprayed on in a health education class.

Last Answer : answer:Try here I am in no way affiliated with this product.

Description : UV Sterilizer recommendation to go with a 30 gallon fancy goldfish tank?

Last Answer : I’m just curious why you want to go with a UV sterilizer on a 30 gallon tank. Is it exposed to a lot of sunlight?

Description : Will UV LEDs work like a UV tube?

Last Answer : answer:Ahh too late to edit, I can get 385-405nm ones for super cheap, but I can see some 380nm ones for 67 cents each, woud those be better? I'm having trouble finding what the real ... , found 100 5mm LEDs, 380-385nm wavelength, only 30 bucks! I wonder if that wavelength works well though.

Description : Whose help do I need to recreate this concept of an UV shoe sanitizer?

Last Answer : I have a UV sanitizer installed in my heating/AC system. In order to be effective, the unit and lamps have to me made to stringent specifications for power and specific UV-C wavelength. Anything ... that's NOT made to medical grade standards. That price stated in your question is about right.

Description : Safe UV lamps for the vitamin D deficient?

Last Answer : answer:Even on cloudy days, your skin can pick up UV outdoors at least that's what I've always been told. That's why people say to wear sunscreen even when it is cloudy. Also, if you sit next to ... outdoors as possible. I would absolutely not want to sit under any kind of lamp, but that's just me.

Description : If UV-C helps create ozone layer and converts Oxygen to O-3. Then why isn't it called ionizing radiation?

Last Answer : answer:In general, Ionizing radiation uses alpha, beta or gamma particles In general , Non ionizing radiation is electomagnetic waves like radio waves, light, thermal UV-C is considered right at the ... consider anything less than 100 nm ionizing . The EPA has a handy chart discussing this.

Description : [DSLR] Which lens UV/Polarizer filter should I get?

Last Answer : answer:My goodness, you need to work on expressing yourself better. Did you bother to proof read your question? It is not clear what you really want to know?

Description : Using "Blender" and UV-Mapping, why can't I export a texturized model into a .x (Direct X) Format?

Last Answer : Just making sure, but did you choose file < export < directx ? Also, do you have the DirectX SDK installed?

Description : How do you test to see if sunglasses truely block 100% of UV rays?

Last Answer : answer:you can get kodak paper that they use for developing photos at a amera store. you have to put the glsses on the paper then release it to sunlight. make sure that the lens is entirely ... completely covered. another thing: glass blocks 99.8% of UV radiation, but this experiment is for plastic.

Description : in addition to being necessary for respiration, _______ also provides uv radiation protection. -General Knowledge

Last Answer : In addition to being necessary for respiration, oxygen also provides UV radiation protection.

Description : What is the principle of UV-Visible spectrum ?

Last Answer : Molecules that have pie electrons or bondless electrons absorb energy from these electronic ultraviolet and visible light rays of the molecular orbitals and are transmitted for short periods of ... molecular orbitals in excited state. This results in UV-Visible or Electronic Absorption Spectrum.

Description : Hello, please have anyone experience with any of these UV nail lamps? I'm especially interested in travel. Thank you http://www.uvlampynanehty.cz/category/uv-lampy/

Last Answer : On.

Description : Does Ultraviolet(UV) Lights produce solar energy?

Last Answer : All living things cannot live without sunlight from the sun and even we need it to survive in this world. I am sure most people will agree on this.

Description : How does UV resistance work?

Last Answer : UV Stabilized means they have added a stabilizer to the resin to allow it to protect the substance from the long-term degradation from UV light. UV stabilizers work by absorbing or ... radiation and preventing damage. UV Resistant materials by nature resists UV rays and prevent UV degradation.

Description : Do you know what a UV disinfection robot is and do you have access to one?

Last Answer : UV disinfection robot is the one that cleans and reduces the bacteria, harmful microorganisms that are hazardous to humans by exposing some amount of UV rays over them. No, I didn't use it but many others in the world are using it.

Description : Identify the wrong statements with reference to UV rays

Last Answer : Identify the wrong statements with reference to UV rays A. UV-A is more harmful to ... into three categories D. UV radiations kills microorganisms.

Description : Exposure of UV radiations causes

Last Answer : Exposure of UV radiations causes A. Formation of thyamine dimers B. Addition of base pairs C. Deletion of base pairs D. Methylation of bases.

Description : Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV radiations causes ozone depletion .

Last Answer : Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV ... D. X is not correct, Y is correct.

Description : Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage to the stratospheric change. Reason (R): Ozone h

Last Answer : Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage ... true but reason is wrong D. Both are wrong

Description : Peeling of ozone umbrella, which protects us from UV rays, is caused by:

Last Answer : Peeling of ozone umbrella, which protects us from UV rays, is caused by: A. CFCs B. PAN C. `CO_(2)` D. coal burning