Ultraviolet (UV) occupies the electromagnetic spectrum between X-rays and visible light. The sun emits ultraviolet rays. However, most of them are absorbed by the earth's ozone layer. Just as visible light consists of different colors in a rainbow, the ultraviolet radiation spectrum is divided i...
UV Radiation Ultraviolet (UV) radiation is defined as that portion of the electromagnetic spectrum between X-rays and visible light or between 40 and 400 nanometer (nm) wavelengths. The primary source of UV radiation is the sun. There are also a number of artificial sources, such as tanning ...
What is the main function of the ozone layer? A. To absorb carbon dioxide. B. To reflect sunlight. C. To protect the Earth from harmful ultraviolet radiation. D. To regulate the E. arth's temperature. 相关知识点: 试题来源: 解析 C。解析:臭氧层的主要功能是保护地球免受有害的紫外线辐射...
What is the danger of ultraviolet rays?Question:What is the danger of ultraviolet rays?Radiation:Radiation is an energy that originates from a source and moves through space at the speed of light. Alpha, neutron, beta, and electromagnetic waves, like X-rays and gamma rays, are four major ...
Name the radiations which can be detected by a thermopile. View Solution The transtion from the staten=4→n=3in a hydrogen like atom results in ultraviolet radiation Infrared rediation will be obtained in the transition from : View Solution ...
这是2024年以来化妆品业界最大的一件事了:前两天突然有记者朋友跟我讲,网上爆出某品牌一款含油橄榄提取物成分的畅销产品被一位很帅的护肤博主送检,发现产品中并不含油橄榄提取物中应该含有的两种标志性成分:橄榄苦苷和羟基酪醇。 关键是,这个品曾经被一位更帅的千万级博主推荐过,所以事件的关注度一下子就很高了...
Overview of ultraviolet radiation and cancer: what is the link? How are we doing?. Environ Health Perspect. 1995;103(suppl 8):251-4.Weinstock, M.A. (1995) Overview of Ultraviolet Radiation and Cancer: What Is the Link? How Are We Doing? Environmental Health Perspectives, 103, 251-54. ...
这是2024年以来化妆品业界最大的一件事了:前两天突然有记者朋友跟我讲,网上爆出某品牌一款含油橄榄提取物成分的畅销产品被一位很帅的护肤博主送检,发现产品中并不含油橄榄提取物中应该含有的两种标志性成分:橄榄苦苷和羟基酪醇。 关键是,这个品曾经被一位更帅的千万级博主推荐过,...
1、什么是同步辐射光源?What is a synchrotron radiation light source? " Synchrotron radiation" refers to a continuous band of electromagnetic spectrum including infrared, visible light, ultraviolet, and X-rays. This light has been called "synchrotron radiation", since it was accidentally discovered in...
Radiation:Radiation refers to waves or rays that emit energy. The natural main source of radiation includes the sun and the land surface. However, the artificial source of radiation is an essential aspect used for medical treatments such as cancer treatment...