What is Ultraviolet light?

Sharad Jaiswal
Sharad Jaiswal

Posted On: Sep 23, 2020

 

Ultraviolet is a form of electromagnetic radiation in which wavelengths range from 10nm to 400nm. Ultraviolet rays cannot be seen with naked eyes like visible light. The wavelength of the UV is shorter than the visible light and longer than X- rays. Sun is the ultimate source of UV rays. There are many types of UV rays like UV-A, UV-B and UV-C. Not only sun there are many other sources which release UV rays for example., electric arcs, some specialized lights such as black lights, tanning lights and mercury-vapor lamps. UV-B rays are very harmful for the DNA, skin and eyes. UV rays allow many chemical reactions to occur and there are many substances which glow or fluorescence in presence of UV.

    Related Questions

    Please Login or Register to leave a response.

    Related Questions

    Electromagnetic Interview Questions

    What do you mean by electromagnetic?

    Electromagnetic describes the magnetic and electric forces and the effect of electric current. Electromagnetic waves are generated due to the vibration produced between magnetic field and electric fie...

    Electromagnetic Interview Questions

    What causes electromagnetic?

    The name ‘Electromagnetic’ comes from the word ‘Electricity’ and ‘Magnetic’. When both the electric field and magnetic field come in contact, electromagnetic waves ...

    Electromagnetic Interview Questions

    What is an electromagnet object?

    A type of magnet in which the magnetic field is generated because of electric current is called an electromagnet. These electromagnets are formed of wire wound into a coil. When current flows through ...