What is light ? State it's important characteristics .
Answers
Answer:
Light, electromagnetic radiation that can be detected by the human eye.
Some characteristics and properties of light are:
1: It moves in straight line called Rectilinear Propagation of light.
2: It is stream of Corpuscles by Newton.
3: It is also Electromagnetic wave.
4: It have incredible speed in vacuum about 299792458 m s-1.
5: It's Frequency unchanged when passed from one medium to other.
6: It's Wavelength changed when passed from one medium to other.
7: It totally passed by transparent.
8: It partially passed by Translucent.
9: It not passed by Opaque at all.
10: It bounces back after hitting a polished surface.
11: It's speed decrease or increase when go from one medium to other medium.
12: It's Wavelength be very small.
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Explanation:
Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that canbe percivedby the human eye.visible light is usually defined as having wavelenght in the range of 400-700nanometer.
The primary properties of visible light are intensity , propagation direction , frequency or wave length spectrum and polarization , while its speed in a vacuum ,299,792,458 meters per secound, is one of the fandamental constants of nature